EVM Calculator

Written by Great Medico

Updated September 25, 2026 •2 min read

Share Print Save

A good business calculator should make the assumptions easier to see, not bury them. EVM Calculator focuses on the specific inputs shown on the page and turns them into one usable summary.

What this calculator does

EVM Calculator summarizes project cost and schedule performance from planned value, earned value, actual cost, and budget at completion. Its scope is intentionally narrow: the calculation follows the visible inputs and does not pretend to include financial variables the calculator never asks you to provide.

How to use it

Enter Currency, Planned value (PV), Earned value (EV), Actual cost (AC), and Budget at completion (BAC). Use figures from the same reporting period and the same accounting, workforce, inventory, or campaign definition wherever possible. The currency selector changes display currency only; it does not perform an exchange-rate conversion. Before using the result in a decision, recheck unusually large or negative values against the source data rather than assuming the calculator is correcting an inconsistent input.

How the calculation works

The core EVM relationships are CV = EV − AC, SV = EV − PV, CPI = EV ÷ AC, and SPI = EV ÷ PV. A common estimate at completion is BAC ÷ CPI when cost performance is assumed to continue, and variance at completion is BAC − EAC.

Example

With PV $100,000, EV $85,000, AC $90,000, and BAC $150,000, CPI is 0.944, SPI is 0.85, and a BAC/CPI estimate gives EAC of about $158,823.53.

How to interpret the result

Use the result as a compact description of the inputs you supplied. Compare it with the same metric calculated consistently over time or across alternatives; the number is most useful when its accounting period, denominator, and business definition remain stable.

Limitations and notes

EVM is only as reliable as the PV, EV, AC, and BAC values supplied. The calculator summarizes those aggregate project figures; it does not validate how progress was measured or whether the baseline budget is realistic. Rebaselining, scope changes, and one-time cost events can make period-to-period comparisons misleading unless the source data is adjusted consistently.