Estimate to Complete: Full Guide for Project Managers

Megan Mathewson
Content Marketing Manager
December 5, 2024
5
min read
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When managing a project, keeping track of costs and making smart choices can determine whether the project succeeds or fails. Estimate to complete (ETC) is a powerful financial metric that helps project managers do just that.

Below, we’ll discuss ETC project management, including its definition, calculation methods, included costs, and how it empowers project managers to maintain control over their milestones and budgets.

Mastering ETC is like having a GPS for your project’s financial journey. It shows the clearest path forward, unlocking the potential to deliver projects on time, on budget, and with greater confidence.

What is Estimate to Complete in Project Management?

In project management, ETC refers to the financial forecast of what it will cost to finish a project. It considers all the remaining work and resources needed to complete it. 

ETC is more than just a number – it’s a dynamic figure that evolves as the project progresses. By consistently updating ETC, project managers can:

  • Adjust budgets dynamically based on real-time data
  • Plan resources effectively for both current and future projects
  • Enhance financial forecasting to improve overall project performance

Why ETC Matters in Project Management

ETC isn’t just about tracking project costs. It’s about leveraging financial insights to drive decision-making. 

With ETC, you can:

  • Avoid budget overruns by identifying potential issues early.
  • Make sure project goals align with business objectives.
  • Use data-driven insights to optimize resource allocation.

What Costs Are Included in ETC?

To perform cost management accurately, you’ll need a complete understanding of all expenditures associated with completing the remaining work, such as:

Physical Materials

This would include any tangible items required to finish the project, such as materials, tools, or equipment.

Human Resources

Calculate employee and contractor salaries based on the hours needed to complete the remaining tasks. This may also include overtime or specialized labor costs.

Overhead

Operational expenses tied to the project, including utilities, equipment maintenance, and administrative support, count as overhead.

Potential Risks

Factoring in unexpected circumstances, such as supply chain disruptions or delays, can help you arrive at a more realistic ETC figure.

By accounting for these details, project managers can ensure that their ETC calculations are thorough and reflect the project’s true needs.

How to Determine ETC in Project Management

Calculating ETC requires a clear understanding of key project metrics and ongoing monitoring. Depending on the data available, there are several formulas you can use to calculate ETC:

Formula 1: BAC - EV = ETC

  • When to Use: Ideal for projects progressing with expected costs
  • How It Works: Subtract the earned value (EV), or the value of work completed, from the budget at completion (BAC).

Formula 2: (BAC - EV) / CPI = ETC

  • When to Use: If the project is running over budget or experiencing inefficiencies
  • How It Works: Divide the difference between BAC and EV by the cost performance index (CPI), which measures how efficiently resources are being used.

Formula 3: EAC - AC = ETC

  • When to Use: If you’re regularly updating your estimate at completion (EAC)
  • How It Works: Subtract actual costs (AC) incurred to date from the most recent EAC.

Formula 4: Bottom-Up Estimation

  • When to Use: For highly detailed, task-by-task forecasting
  • How It Works: Add up all remaining costs for individual tasks, ensuring accuracy at every level.

Important Note: Accurate data is essential when calculating ETC. Outdated or incorrect numbers can lead to flawed forecasts, potentially causing financial or operational issues.

Why ETC is Essential for Project Managers

Incorporating ETC into your project management toolkit provides a wide range of benefits, including:

Enhanced Budget Control

ETC allows you to monitor costs closely, making it easier to identify potential unnecessary expenditures and take corrective action before it’s too late.

Improved Resource Allocation

With a clear picture of future costs, you can allocate — or reallocate — resources more effectively, so that the project at hand stays on track.

Risk Mitigation

By forecasting costs and identifying potential financial challenges, ETC helps you proactively address risks that could derail your project.

Try out the best business forecasting software here!

Strategic Decision-Making

ETC data can be used to make informed decisions about scaling back or expanding project scope, securing additional funding, or reallocating resources to maximize impact.

Stakeholder Confidence

Accurate ETC calculations give stakeholders the transparency they need to feel confident in your project management capabilities.

The Role of Earned Value Management (EVM)

ETC is closely tied to Earned Value Management (EVM), a project management methodology that combines scope, schedule, and cost performance metrics to assess project progress.

EVM provides the foundational data needed for ETC calculations, including:

  • Earned Value (EV): The value of completed work
  • Cost Performance Index (CPI): A measure of cost efficiency
  • Estimate at Completion (EAC): The projected total cost of the project at its conclusion

Without a solid understanding of EVM principles, project managers may struggle to calculate ETC accurately.

Practical Tips for Using ETC in Project Management

To get the most out of ETC project management, follow these best practices:

Update Regularly

ETC is a dynamic metric that should be recalculated as the project progresses. Regular updates make sure your data remains accurate and actionable.

Use Reliable Data

Inaccurate information can lead to flawed ETC calculations, negatively impacting your ability to manage costs and resources effectively.

Combine with EVM Tools

ETC is most effective when used alongside other EVM tools, such as CPI and EAC.

Leverage Software Solutions

etc software solutions by accelo

Project management tools like Accelo can streamline ETC calculations, providing real-time updates and ensuring accuracy at every step.

Communicate Results Clearly

Share ETC insights with your team and stakeholders to foster collaboration and ensure everyone is aligned on project goals.

Using ETC for Future Projects

The value of ETC extends beyond individual projects. By analyzing ETC data from completed assignments, you can:

  • Increase budgeting accuracy to improve future performance.
  • Identify trends in resource allocation and cost efficiency.
  • Make more strategic decisions to enhance overall project performance.

For example, if past ETC assessments reveal frequent project budget overruns due to inaccurate labor cost estimations, you can adjust future budgets to account for these discrepancies.

Conclusion

The estimate to complete tool is vital for a project manager, providing the financial insights needed to stay on budget, allocate resources effectively, and deliver successful projects.

By mastering ETC project management, you’ll be better equipped to meet business objectives, mitigate risks, and make data-driven decisions that drive long-term project success.

Ready to take your project management to the next level? With Accelo, you can streamline ETC calculations and gain the insights you need to manage projects more effectively.

Book an Accelo Demo Today!

Author Bio
Megan Mathewson
Megan Mathewson is the Content Marketing Manager at Accelo, where she shares invaluable insights with service professionals and tells impactful stories via blogs, emails, social media, industry reports, and more. With over a decade of experience in storytelling and multimedia content production across diverse industries, Megan's strategic approach drives compelling narratives that elevate brand presence and fuel business growth in both B2B and B2C markets.
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