Calculate without sending your numbers away
Enter numbers with the keyboard or tap the keypad. The calculator supports +, −, ×, ÷, parentheses, decimals, percent and square root. Press equals or Enter to see the result. There is no account or API call for a calculation.
Percent means divide by 100, so 25% is 0.25. To find 25 percent of 80, enter 80 × 25%. Use parentheses when several operations need a specific order.
Check the result before relying on it
This is a standard arithmetic calculator. It rejects incomplete expressions and division by zero instead of silently inventing a number. Long decimal results are rounded for display; it is not a scientific or financial precision instrument.
For a file-size estimate based on bitrate and duration, use the separate video file size calculator.
Frequently asked questions
What can this calculator solve?
Enter decimal arithmetic with addition, subtraction, multiplication, division, parentheses and percent. It also has a square-root button.
Are my calculations uploaded?
No. Calculations run in your browser and are not sent to SaveFromNet.
Why does an expression show an error?
Check for unmatched parentheses, missing numbers or division by zero. The calculator does not evaluate code or variables.