FORCE CALCULATOR
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F = m × a • folder: force-calculator
ENTER VALUES
INPUT
Choose what to find, then enter the other values.
FIND
F
Choose the unknown
ROUND
2DP
Final answer only
MASS m
m
kilograms kg
ACCEL a
a
m/s²
FORCE F
F
newtons N
FORMULA
FMA
Use SI units
ANSWER + WORKING
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Formula • substitution • result
WORKING
READY
Use PREV to change the values, or NEXT for formula help.
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FORCE
AUTO
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FORCE FORMULAS
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F, m and a
FORCE FORMULAS
FIND FORCE
F = m × a
FIND MASS
m = F ÷ a
FIND ACCELERATION
a = F ÷ m
UNITS
Force is N, mass is kg, acceleration is m/s².
WORKED EXAMPLES
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Formula substitution
WORKED EXAMPLES
FORCE
m = 12 kg, a = 3 m/s², so F = 12 × 3 = 36 N.
MASS
F = 50 N, a = 5 m/s², so m = 50 ÷ 5 = 10 kg.
ACCELERATION
F = 24 N, m = 8 kg, so a = 24 ÷ 8 = 3 m/s².
CHECK
Use kilograms, newtons and m/s² together for GCSE physics answers.
WHAT THIS TOOL IS FOR
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Purpose and support
WHAT THIS TOOL IS FOR
MAIN PURPOSE
This calculator finds force, mass or acceleration from Newton’s second law.
FORMULA
It uses F = m × a and rearranged versions for GCSE science revision.
WHEN TO USE IT
Use it when mass and acceleration are linked to a resultant force.
URL
/force-calculator/
HOW TO USE IT
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Simple input steps
HOW TO USE IT
STEP 1
Choose whether to find force, mass or acceleration.
STEP 2
Enter the two known values in the visible boxes on Page 1.
STEP 3
Press SOLVE to show formula, substitution and answer.
STEP 4
Use kg for mass, m/s² for acceleration and N for force.
COMMON SEARCHES
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Search intent coverage
COMMON SEARCHES
MAIN SEARCHES
force calculator • F equals ma calculator • Newton force calculator
QUESTION SEARCHES
calculate force from mass and acceleration • find mass from force and acceleration
SCIENCE SEARCHES
GCSE force formula calculator • resultant force calculator • Newton’s second law calculator
USE CASES
Cars accelerating, trolleys, sports forces and simple mechanics examples.
USERS + USES
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Physics revision support
COMMON USES + USERS
STUDENTS
Students use it for GCSE physics, Newton’s laws and motion questions.
TEACHERS
Teachers use it to demonstrate F = ma rearranging and substitution.
MOTION EXAMPLES
Useful for trolleys, cars, pushes, pulls and acceleration examples.
NEXT TOPICS
Force links naturally to density, pressure, work done and energy.
RELATED PAGES
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Internal physics links
RELATED PHYSICS PAGES
PHYSICS HUB
SIBLING TOOLS
SEO URL
https://teletext-tools.com/force-calculator/
FAQ
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Quick answers
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.
SEARCH TERMS A
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Readable SEO terms
SEARCHABLE TERMS
GENERAL
force calculatorF equals ma calculatorNewton force calculatorGCSE force calculator
FORMULA
mass acceleration force formulanewtons formula calculatorNewton’s second law calculatorresultant force calculator
QUESTIONS
calculate force from mass and accelerationfind mass from force and acceleration
SEARCH TERMS B
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More readable SEO terms
MORE SEARCHABLE TERMS
ACCELERATION
find acceleration from force and massforce divided by mass calculatormass from force calculatoracceleration from newtons
UNITS
kg m/s squared to newtonsnewtons force formulaSI force units calculatorphysics force units
SCHOOL
physics force formula toolscience homework force calculatorforce mass acceleration GCSETeletext physics calculator
UNITS GUIDE
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Final support page
UNITS AND FINAL CHECKS
STANDARD UNITS
Use kilograms for mass and metres per second squared for acceleration.
FORCE UNITS
The answer is in newtons when SI units are used correctly.
ZERO CHECKS
Zero acceleration or zero mass can make rearranged formula questions invalid.
RETURN
Use NEXT to return to Page 1 and calculate another value.