Calculate& Decide

Education calculator

Grade Needed Calculator

This calculator balances points already earned against the uncompleted course weight to find the required remaining average.

Updated · Inputs stay in your browser

Enter your values

Average on completed work.
Share already graded.
Desired overall course grade.

Your values stay on this device. Nothing is sent to Calculate & Decide unless you deliberately use your device's share feature.

What this result means

This calculator balances points already earned against the uncompleted course weight to find the required remaining average. The results panel explains the main number and the quantities that produced it, so you can check whether the estimate answers your real question.

Formula used

Needed grade = (Target − Current grade × Completed weight) ÷ Remaining weight, with weights written as decimals.

Step-by-step calculation

  1. Validate every required value and reject values outside the stated field limits.
  2. Convert rates and time periods to the units required by the formula.
  3. Calculate with full JavaScript number precision; do not round intermediate values.
  4. Round only the displayed result and explain the practical meaning.

Worked example

With an 82% current grade after 70% of the course and a target of 85%, you need 92% on the remaining 30%.

Assumptions and limitations

  • The current grade accurately summarizes completed weighted work.
  • Completed and remaining weights add to 100%.
  • Grades combine linearly and there is no extra credit or special rounding.

How to use this calculator

  1. Choose a currency symbol when the tool uses money.
  2. Enter values in the units shown beside each field.
  3. Select Calculate, then read both the main result and interpretation.
  4. Change one uncertain input at a time to understand sensitivity.
  5. Use Copy result or Share only when you choose to move the result outside this page.

Common mistakes

  • Entering 70 for remaining weight when 70% is already completed.
  • Using an unweighted average when assignments have different weights.
  • Assuming a required score above 100% is achievable without extra credit.

Frequently asked questions

What does a result above 100% mean?

The target is not reachable under a 100% maximum without extra credit or changed grading.

What does a negative result mean?

The target is already secured even with zero on remaining work.

Does this round the final grade?

No special school rounding rule is applied.

Methodology and sources

Formula definitions and edge-case behavior are documented on our Methodology page. No external data is fetched by this calculator.

See the site-wide calculation methodology and editorial standards. Formula errors can be reported through the error-reporting instructions.

Published and reviewed .