School & Grades

Grade Calculator

Use this grade calculator to estimate what you need on a final exam and to total weighted assignments.

Updated May 2026No signup requiredBuilt for mobile

Calculator

Needed final exam score--

Planning note--

How to use this calculator

  1. Enter your values in the calculator fields.
  2. Check that the units and percent formats match what the label asks for.
  3. Click Calculate to update the result.
  4. Use Reset Calculator to restore the starting example.

Formula or calculation method

Needed final score = (desired grade - current grade x (1 - final weight)) / final weight.

Weighted grade = sum(score x weight) / sum(weights).

Worked example

With an 86 current grade, a final worth 20%, and a desired 90, you need 106 on the final because the target is above the current trend.

Practical planning tips

  • Final exam planning
  • Weighted assignments
  • Course tracking
  • School planning
  • Grade goals

Common mistakes to avoid

  • Entering final weight as 0.2 instead of 20
  • Forgetting that extra credit rules vary
  • Ignoring category weighting from the syllabus
FAQ

Grade Calculator questions

Is this calculator exact?

It is a practical estimate based on the values you enter. Verify important decisions with the official source, lender, school, product label, or professional guidance when needed.

Why did I get an error?

The calculator checks for blank fields, invalid numbers, impossible negative values, and divide-by-zero situations. Review the message and adjust the input.

Can I use this calculator on my phone?

Yes. The inputs, buttons, and result cards are built to work on mobile screens.

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