Test Score Calculator

How Test Score Calculator works

Convert correct answers into a percentage, a wrong count and the letter grade it usually maps to. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

Correct, wrong, percentage

Enter the number correct and the total, and the tool returns the percentage, the number wrong and the letter grade that percentage usually maps to. With 42 of 50, that is 84% and a B in most US schemes.

The letter mapping is a convention, not a standard — a 90 is an A in many schools and an A− in others, and some use a 10-point band while others use 7.

Weighted versus raw

This is a raw percentage. If sections carry different weights — a multiple-choice part worth 60% and an essay 40% — calculate each section's percentage and combine with the weights, rather than treating all questions as equal.

Negative marking

If wrong answers deduct marks, the effective score is correct − wrong × penalty, which can be far below the raw percentage. This calculator does not apply a penalty, so enter the adjusted counts if your exam uses one.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions