FORCE CALCULATOR
NEWTONS FORMULA
WORKING
FORCE FORMULAS
FORCE FORMULAS
WORKED EXAMPLES
WORKED EXAMPLES
WHAT THIS TOOL IS FOR
WHAT THIS TOOL IS FOR
This force calculator finds force, mass or acceleration from Newton’s second law.
It uses F = m × a and rearranged versions for GCSE physics and science revision.
Use it when an object’s mass and acceleration are linked to a resultant force.
Best Google-friendly folder: /force-calculator/
HOW TO USE IT
HOW TO USE IT
Choose what you need to find: force, mass or acceleration.
Enter the two known values in the visible boxes on Page 1.
Press SOLVE to show the formula, substitution and rounded answer.
Use kilograms for mass, m/s² for acceleration and newtons for force.
FORCE CALCULATOR HELP
FORCE CALCULATOR HELP
COMMON USES + USERS
COMMON USES + USERS
Students use it for GCSE physics, Newton’s laws and motion questions.
Teachers and tutors can use it to demonstrate F = ma rearranging and substitution.
It helps with cars accelerating, trolleys, sports forces and simple mechanics examples.
It also supports checks before density, pressure, work done and energy questions.
RELATED PHYSICS PAGES
RELATED PHYSICS PAGES
FAQ
FAQ
What formula is used? F = m × a.
What unit is force? Force is measured in newtons, shown as N.
Can it find mass? Yes. Use m = F ÷ a.
Can it find acceleration? Yes. Use a = F ÷ m.
SEARCHABLE TERMS
SEARCHABLE TERMS
Search terms for this page include force, mass, acceleration, newtons and GCSE physics formulas.
MORE SEARCH TERMS
MORE SEARCHABLE TERMS
These longer phrases are kept in a full reading panel instead of compressed frames.
UNITS GUIDE
UNITS AND FINAL CHECKS
Use kilograms for mass and metres per second squared for acceleration.
The answer for force is in newtons when SI units are used correctly.
Zero mass or zero acceleration can make rearranged formula questions invalid.
Use NEXT to return to Page 1 and keep the calculator close at hand.