AllMyCalculators

Force, Mass and Acceleration Calculator (F = ma)

Rearranges F = ma for whichever value you need.

m/s²

When finding mass, give force and acceleration the same sign. Neither can be zero.

Answer
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Force —
Mass —
Acceleration — m/s²

The formula

F = m × a

F is the net force, m the mass and a the acceleration. One newton accelerates one kilogram at 1 m/s².

What to watch out for

Use the net force: subtract friction, drag and anything else acting against the push.

Frequently Asked Questions

What force accelerates 1,000 kg at 2 m/s²?

2,000 N (449.62 lbf).

How do I find mass from force?

Divide the force by the acceleration. 50 N giving 2 m/s² means 25 kg.

Is a pound a unit of force or mass?

The pound (lb) is mass; the pound-force (lbf) is the weight of one pound in standard gravity.