calculate budget at completion

📊 Budget at Completion (BAC) Calculator

Welcome to the Budget at Completion Calculator — a professional-grade tool used to estimate the total budget required to complete a project. It’s a vital metric in Earned Value Management (EVM) and helps teams stay aligned with cost and time targets.

If you’re a project manager, engineer, analyst, or student — this calculator simplifies complex calculations and gives you instant, reliable results.

✅ How to Use the BAC Calculator

There are two common ways BAC is calculated, depending on what data you have:

1. Fixed Total Budget (Manual Entry):
Just enter your planned total cost of the project.

2. Based on Earned Value Formula (optional): BAC=EV+(EAC−AC)\text{BAC} = \text{EV} + (\text{EAC} – \text{AC})BAC=EV+(EAC−AC)

Where:

• EV = Earned Value
• EAC = Estimate at Completion
• AC = Actual Cost

📌 This calculator supports both formats.

🧠 Example

• EV = ₹4,00,000
• EAC = ₹6,50,000
• AC = ₹3,50,000

➡️ BAC = 4,00,000 + (6,50,000 – 3,50,000) = ₹7,00,000

🎯 Ideal For:

• 🏗️ Construction project teams
• 💼 IT project managers (Agile, PMP)
• 🎓 Students learning project management
• 🧾 Finance & cost control departments
• 🔍 Freelancers handling client-based budgets

⚙️ Features

• 🔹 Supports both direct and formula-based input
• 🔹 Designed for Earned Value Management (EVM)
• 🔹 Clean, intuitive, and mobile-friendly interface
• 🔹 All calculations happen instantly and securely
• 🔹 No sign-up or download required

🔍 Frequently Asked Questions (FAQs)

1. What is Budget at Completion (BAC)?

BAC is the total planned budget for a project. It represents what you expected to spend when the project was completed — based on scope, schedule, and resources.

2. How is BAC calculated?

There are 2 common methods:

• Directly: Use the full original project cost (if no change expected)
• Formula: BAC=EV+(EAC−AC)BAC = EV + (EAC – AC)BAC=EV+(EAC−AC)

This is used when adjustments are made during execution.

3. What is the difference between BAC and EAC?

• BAC is the original approved budget
• EAC (Estimate at Completion) is what the project is now expected to cost, based on performance

4. Why is BAC important in project management?

It sets the baseline budget for comparison and forecasting. Deviations from BAC signal risks, cost overruns, or re-estimation needs.

5. Is BAC the same as total project cost?

Yes — if your plan stays on track. But as actual values change (AC, EV, etc.), you may need to revise to EAC or ETC (Estimate to Complete).

6. Can I use this calculator for Agile or Waterfall projects?

Yes. BAC is used in both Agile and traditional (Waterfall) project management, especially when applying Earned Value principles.

7. Can this tool be used for personal budgeting?

Not exactly. It’s built for project-based financial planning, not monthly or household budgets.

8. What do I need to use this calculator?

Just know your:

• Earned Value (EV)
• Actual Cost (AC)
• Estimate at Completion (EAC)

OR directly enter your planned budget if known.

9. Will this calculator save or share my data?

No. All your data stays on your device and is not saved or shared.

10. Is this tool free to use?

Yes — completely free, with no login, no subscription, and unlimited use.