About the Force Calculator
Newton's second law: solve for force, mass or acceleration (F = ma), with the weight equivalent.
Also known as: f = ma, newtons second law, net force calculator, force formula.
How to use this calculator
- Enter solve for.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
F = m × a
- F
- = force in newtons
- m
- = mass in kilograms
- a
- = acceleration in m/s²
Worked example
Using the values pre-filled in the calculator above:
- Solve for: Force
- Mass = 50 kg
- Acceleration = 5 m/s²
the calculator returns:
- Force: 250 N
- Mass: 50 kg
- Acceleration: 5 m/s²