Physics Force Calculator
Calculate force from mass and acceleration with F = ma.
Quick answer: enter your details below and click Calculate Force — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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Enter your details below.
How to use
- Enter the values in the labelled units.
- Click Calculate Force.
- Read the result and its formula.
About this tool
Enter mass in kilograms and acceleration in metres per second squared. The tool multiplies them for force in newtons. All physics tools here use standard textbook formulas, labelled as such.
Frequently asked questions
What units should I use?
Use the units on the labels (kg, m, s, N, J, W) so the formula's result comes out in standard units.
Is this exact?
The formula is standard textbook physics; real measurements carry their own errors, but the arithmetic is exact.