Student calculators

Get the number. Keep studying.

Use focused calculators for arithmetic, percentages, weighted grades, GPA, fractions, and simple linear equations. These utilities calculate locally in your browser.

Choose a calculatorSee how it works

No signup. Calculated locally in your browser.

A working StudySim student calculator with entered values and a calculated resultView screenshot
Actual calculator output, computed locally in the browser.

What you get

Six dedicated utilities with bounded inputs and results you can inspect without a generation request.

From your material to your next step.

  1. Choose the calculation

    Open the utility that matches the problem instead of sending a generation request.

  2. Enter the values

    Use the fields and supported syntax shown by that calculator.

  3. Read and check the result

    Inspect the result and make sure the inputs and assumptions fit your use.

Make it part of the way you work.

Grades and GPA

Work with weighted completed grades or a credit-weighted unweighted 4.0 letter-grade GPA scale.

Everyday math

Calculate percentages, arithmetic, fractions, or supported simple linear equations in x.

Start here. Save what helps.

These six calculators run locally without signup or the AI generation allowance. Inputs are bounded to keep the browser responsive.

See the current free and Pro offer

Know the scope

The grade and GPA tools use the stated assumptions rather than every school’s grading policy. The algebra tool handles supported simple linear equations, not general symbolic mathematics.

Open the standalone tool

A few useful details.

Do calculations use an AI API?

No. These utilities calculate locally in the browser and do not send source text to a generation provider to compute the result.

Are calculators included in the daily AI limit?

No. Local calculators do not consume the AI generation allowance.

Keep going.

All features

Word counter

Count words, characters, sentences, and paragraphs as you edit. Set a writing goal and see estimated reading and speaking time without signing up.

Quizzes

Create a short quiz from your own study material. Choose your answers, check the result, and read the explanation behind each question.

Study Simulator

Use a tool for the task in front of you, or open a course to work with the material you have already saved. Study Simulator brings both paths together.