Multiple Calculators: Side-by-Side Math Tools

Use two or more calculators side by side for free. Track your calculations with the step-by-step history tape. Everything processes instantly and locally right in your browser.

Run multiple instances of calculators simultaneously.
Easily compare numbers and trace your step history without losing context.

How to use side by side calculators

1. Start Calculating

By default, two calculators will load side by side on desktop screens. Simply click on the numbers and operators to begin your calculations.

2. Add More Calculators

Click the "+ Add Calculator" button if you need to run multiple calculations at once. You can add up to 6 calculators total.

3. Track History

Every calculation shows its history (steps) in the tape above the main display, so you never lose track of where you are.

4. Remove Calculators

You can remove any calculator by clicking the "x" on its top right corner. The state will be cleared automatically.