Force Calculator
Calculate force using Newton's second law. Find force, mass, or acceleration from the equation F = ma.
Our Force Calculator applies Newton's Second Law. Here's how to use it:
Step 1: Select what you want to calculate: force, mass, or acceleration.
Step 2: Enter the two known values with appropriate units.
Step 3: Select your preferred output units.
Step 4: Click 'Calculate' to see the result.
The calculator displays: - Result with unit conversion - The formula used - Real-world comparisons - Force in SI and alternative units
Newton's Second Law of Motion:
F = m × a
Where: - F = Force in Newtons (N) or pounds-force (lbf) - m = Mass in kilograms (kg) or pounds (lb) - a = Acceleration in m/s² or ft/s²
Rearranged: - m = F / a - a = F / m
Unit conversions: - 1 N = 0.225 lbf = 1 kg·m/s² - 1 kgf = 9.81 N - Gravity (g) = 9.81 m/s² = 32.17 ft/s²
Verified Precise