In our daily lives, we constantly make estimates. For example, it is common to practise calculating rough travel costs, including lodging, food, and transportation, while making preliminary plans. We also figure out the fastest way to go from the hotel to the airport and back again. We also try to stay consistent with the priorities we’ve established for ourselves. In a similar vein, Project Cost Estimate is also relevant.

The most significant obstacle in successful project estimates is the high degree of uncertainty around the field. Estimating the cost of a project is no easy feat, especially when so many variables must be considered. As a result, it may take a lot of time to do some essential study and think of novel approaches to this problem of project estimates.

A project manager must accurately assess the project’s scope and budget, and cost estimation methodologies may help them do just that using the project estimation technique. As a result, the entire project estimation process may be utilized for efficient resource management in Agile IT operations. In addition, a project manager may better serve their customers by using these methods for estimating the amount of work to be done and the associated costs and resources.

What is a project estimate? What parts of a project should be estimated? What kinds of project estimating methodologies are available? And how do you get started utilizing them in project management? We will try to answer all of these.

We’ll examine how estimating software may be of use, too. Now, let’s get started on our exclusive reading.

What is Project Estimation?

It’s the practice of user experience and current information to estimate how long it will take and how much money and materials will be required to finish a project. Scope, timelines, project cost, and potential hazards are the standard components of every project estimate.

An estimate is a rough calculation of how much project cost will be necessary to finish a project. It is a crucial component of both project management and budgeting. An estimate is a sum calculated from the project estimation process; it gives stakeholders an idea of how much money will be needed to finish a project.

When controlling the costs of a project, the budget is a critical factor that may determine the success or failure of the whole endeavour. An estimate and a budget may determine the success or failure of a project in two ways:

The project cannot be completed if the project cost estimate exceeds the allocated funding. If this happens, the party that orders the completion of projects will need to find alternative means of financing before it can go forward with the order.

No more money may be spent than was allotted for the project. Funding for the project’s implementation stakeholders will run out if this doesn’t happen (perhaps never be realized).

In addition to amounts, project estimates typically include a detailed description of the work to be done, a list of the resources that will be required, a project schedule outlining when things need to be done, and a breakdown of the costs associated with completing the project.

Even after learning what an estimate is and why it’s useful, some may be skeptical.

Importance of Cost Estimation in Project Management

Most companies prioritize minimizing their project costs, and developing an accurate cost estimate is a crucial first step in creating a workable project budget.

When estimating expenses, it’s essential to account for both the direct and indirect varieties. Products and tools like software are examples of direct payments. Indirect costs may also include salaries and benefits for employees and independent contractors hired to work on the project.

Common examples of indirect expenses are those for things like utilities, rent, and office supplies that businesses must pay for anyhow. Therefore, it’s essential to factor in potential increases in indirect expenses when you plan to roll out your new project.

Why are Accurate Estimates so Important?

The Project Management Institute quoted research revealing that actual transportation infrastructure project costs were, on average, 28% higher than predicted costs. It is typical for companies to underestimate the amount of time and resources needed to complete a project because of factors such as a lack of access to past project data on job performance, haste to win a client bid, or internal pressures to get a project authorized.

Since work schedules and budgets are built on the backs of cost estimates, an estimate’s precision may profoundly affect whether or not the project successfully succeeds in its goals.

Among the advantages of making accurate cost estimates are the following:

1. It Helps in Making More Precise Planning

When you can reliably forecast the activities and resources needed to accomplish a piece of work, you will be able to generate a work breakdown plan, allocate jobs to personnel, and stick to expected deadlines.

2. You Can Improve Your Profit Margins

Several variables (such as unanticipated occurrences, poorly scoped work, and inflation) may cause job costs to rise throughout a project’s life cycle, threatening meeting budget and profitability goals and project plans. The accurate three-point estimating process considers anticipated and unforeseen expenses and protects your profit margins.

3. You will have Better Resource Management

With deeper visibility into the activities and dates required to accomplish work, you can ensure the exact capabilities needed to finish each deliverable, identify resource shortages, engage extra people as necessary, and confidently undertake new projects.

4. You will have Better Client Relationships in Business

When customers understand the “why” behind a project’s cost, they are more likely to trust your knowledge and anticipate changes to the cost estimate as the project continues, resulting in improved working relationships.

5. You will Achieve a Better Reputation and Repeat Business

When projects are completed on time and under budget, you are more likely to have satisfied clients, get repeat business, and receive more recommendations.

Best Practices to Estimate Project and Time

Accurately three-point estimating the resources and time needed to complete your project is a potential roadblock. Unfortunately, it’s not uncommon for any project manager to make an exaggerated or implausible prediction about how much money would be needed.

Before commencing work, it is essential to precisely estimate the needed time and resources. In addition, you and the customer will better understand the financial commitment involved in completing the project if you and the team provide a quantitative estimate of the time, resources, and expenses involved.

Time, effort, and cost estimates are inherently inaccurate. Still, with proper planning, you may minimize potential setbacks and guarantee your similar projects’ success.

Analogous estimating projects may be done in several ways. So, to help you estimate projects accurately, here are some guidelines – we will also cover several project estimation techniques.

1. First, be Sure You Can Trust the Numbers You’re Citing

The most important thing you can do to ensure accurate estimations is to double-check your numbers and data. Speculation and assumptions are strictly forbidden.

You should still try to put a number on every price you offer, even if you know it won’t be perfect. However, if you want to prevent arguments in the future, adding some space around the edges is a good idea.

2. Specify the Assumptions Used to Get the Figures

To ensure everyone on the project team is on the same page, it’s crucial to discuss the assumptions that went into the numbers as you collect requirements and communicate with the team members.

It’s possible, for instance, that when you’re outlining the features you want to add to a product, the stakeholders will anticipate a scaled-down version while your team is seeing something far grander. So, naturally, this will have repercussions on how long it takes, how much money is needed, and what materials are available.

To ensure everyone is on the same page, it is crucial for all parties involved to communicate their managed client expectations in advance.

3. Adjust to the Available Spending Plan

Do not make a promise you cannot keep. There may be a lot of room for creativity in the project you’re about to undertake. Still, you may not be able to realize all of those possibilities with the money you’ve been allocated.

Likewise, if you make grandiose promises to your customers, they may get disillusioned if you can’t deliver on them. It’s also important to remember that the project’s sponsor and stakeholders aren’t the be-all and end-all when establishing the project’s scope and collecting the project’s requirements. Therefore, modify your methods to fit the given resources. The trick is to keep things in perspective.

4. Include Risks

Keeping your customers aware of potential dangers is essential, so consider them when calculating costs. As a safety net, a buffer of time, money, and resources are vital if anything goes wrong. It is also essential to consider the time, money, and resources required to implement a risk and backup strategy.

5. Cross-Verify Your Estimates!

Meetings, internal modifications, customer input, and bug testing are all examples of specific tasks that might be overlooked during project elements planning. Consequently, this will lead to setbacks and increased expenses. Therefore, if you want an accurate estimate of the total cost of your current project, you must include all of the associated costs.

6. Divide Your Project into Smaller Segments Before Estimating their Cost

Estimating the total cost of a current project may be difficult, so it’s helpful to first split it down into its constituent elements. It’s easier to assess a project’s total cost accurately if each component is carefully planned and executed. This means the current project will be completed successfully and on the project schedule.

7. Enumerate and Assess Each Task

Sometimes it is not sufficient to just split the job into manageable chunks and provide rough estimates. If you have the luxury of time, it is always advisable to make a detailed list, assess its importance, and give a rough estimate for each work included in the project. An accurate project estimate may be obtained by calculating the time required to perform each job and then combining those estimates.

Project Estimate Techniques

Project Estimate Techniques

1. Top-Down Estimation

We have to be blunt about this one: don’t use it. So-called because it is the polar opposite of a bottom-up estimate. You break down the whole project into manageable chunks using the maximum available funds.

You then determine whether the total cost of all the components is feasible having project key deliverables in mind. While easy to implement, we do not advise anybody to utilize this strategy due to the high potential risks involved.

2. Three-Point Method

With this approach, we combine the best-case, worst-case, and most likely scenarios to estimate the “sweet spot” in the middle. The most “practical” final amount may be found by adding together the three integers and dividing by three.

This strategy works well for mitigating risk because it incorporates a safety buffer and considers alternative outcomes. This may result in better forecasts.

The only open issue is the precision with which the final tally is calculated. The question is, “What if the worst thing that may happen does happen?” As a result, the last price tag won’t match the estimated one.

There is a need to consider these factors while using this method. But, first, one must study the fundamentals of analogous estimation after becoming familiar with the most widely used project estimate technique.

3. Analogous Method

This project estimation technique makes use of historical necessary information from initiatives with similar goals. For example, microscale applications use past project data on the efficiency of comparable or identical jobs, pieced together to generate an estimate, much like LEGO bricks.

It makes sense to do this if the new endeavor is comparable or involves a similar project. If you repeat the same steps, you may expect the same time commitment and financial investment.

The time, cost, and resources spent should be about the same if the tasks are the same. Unfortunately, this is not always the case. Doing the same or comparable project work at a different time or under other conditions already suggests that there will be differences.

If everything were to remain the same, the analogy technique would always provide correct results. However, this strategy can never be considered foolproof due to the chaotic and unpredictable nature of the actual world.

4. Parametric Estimation

Suppose you have data from the past to repeat a similar project or identical job reliably. In that case, this approach will work well for you. Suppose your project consists mostly of such activities. In that case, you can easily calculate the total estimate project cost by multiplying the total number of activities by their per-activity completion rate.

Parametric modeling is straightforward and often accurate since it uses reliable historical data for activities comparable to or the same as the ones at hand.

Therefore, it is not a good idea to use parametric estimating projects to tasks that are not like those described above, such as creative or complex processes with a low degree of predictability. Therefore, this tactic will not be effective.

5. Bottom-Up Method

The Waterfall approach to software development is comparable to this technique. First, you reduce everything to its most minor components and then figure them out separately. Finally, the sum is found by adding the individual amounts together.

More specificity leads to greater precision. The same approach may also be used to improve the accuracy with which the costs of individual components are predicted.

This approach can provide inaccurate results in two situations. First, suppose managers don’t factor in all the necessary details. In that case, they can wind up paying more than expected since they had to do more work than initially anticipated.

Second, it is irrelevant how precise the computations are if the underlying variables are wrong.

What to Say When Sending an Estimate?

Therefore, it is not a good idea to use parametric project estimating for all the work that is not like the sort of work it was designed for, such as creative or complex processes with a low degree of predictability. Therefore, this tactic is certain to fail.

1. Must Include the Scope of the Work to be Performed

Customizing estimates for each client is essential. Using a sample when selecting what to write in an estimate email is helpful. Why? Using project management templates may ensure that all estimates are of the same high quality.

If your customer approves your estimate, you should proceed with a detailed explanation of the job you will do. Again, be specific and list everything the customer needs to be done for the project to be considered complete.

Factor in the estimated project cost of supplies and the anticipated volume of consumption.

2. Don’t Forget About the Project Timeline

Your customer’s deadline may not be the same as the one you set. The time it will take to finish the task should also be factored in. Find a range manageable for you, your company, and any other projects you may be working on simultaneously.

3. Dictate Your Payment Terms

Once you’ve gathered all the necessary data, it’s time to set your payment conditions with the customer. For example, do you want to be paid when the work is done? Should I need a prepayment from my client?

Instead, is a payment plan available to the customer? These are essential considerations. Why? That’s because if customers have options, they may choose the payment plan that works best for them.

If the customer pays in full before a specific date, you may offer them a discount (e.g., paying the total amount at the start of the job).
Do not forget to include the cost of any late fees or penalties in the overall estimate.

4. Be Clear About Your Price

In business, one of your most appealing features is probably your pricing. The project description provides an itemized list of all labor and material expenditures. The total projected cost should be listed either at the top or bottom of the actual estimate. Don’t forget to mention any bundles or special pricing that might help your customer save money.

5. Add Company Information

Have you included every aspect of the project in your calculation? Perfect! The next step is to fill up your business details. If you want to make sure your client knows whose final estimate they are looking at, it’s a good idea to put your logo in a conspicuous place (like the top left corner).

Provide the customer with a name, address, email, and phone number to avoid unnecessary hassle. If you have one, this may go either beneath the project description or the logo.

How to Use Moon Invoice for Project Estimations?

Thanks to our estimate management and overall project estimate software, fast and precise quote, and proposal delivery are now possible for organizations and professionals. Incorporating our estimate management software into your organization can help you save the overall time and effort required when writing excellent business proposals. Moon Invoice provides its users with access to 66+ preset premade PDF templates for creating fast business quotations and estimates for free.

A seller may submit bids to a buyer through email for approval. Once the estimates are accepted, they may be quickly turned into invoices to start collecting money owed. It’s a time saver and a boon to creating professional-quality invoices for your company.

Have team members that need access to the estimate maker software? With activity logs, Moon Invoice’s administrator can maintain tabs on what the estimate makers are up to. First, examine the estimated dashboard to look at the various tasks that people have done.


For practical and realistic project estimation, two things are required:

  • Solid project data
  • A project estimation tool like Moon Invoice

Estimating future work is simplified when historical data is readily available. Unless you’re using broad assumptions or rough predictions, you need a method to keep track of and combine your project’s many moving parts.

The bottom-up project estimation may be generated mechanically by a project management tool. However, it may keep tabs on forecasts against actuals and provide a place to document adjustments, blunders, and lessons learned to inform future predictions better. It also streamlines the process of keeping key stakeholders up-to-date by providing revised estimations.