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Impulse Calculator

Calculate impulse — the change in momentum — from the average force applied to an object and the duration of contact (J = F × Δt).

Impulse
50N·s

Formula: J = F × Δt

About Impulse Calculator

Impulse Calculator is a free online calculator that gives you an instant, accurate result as you type. Calculate impulse — the change in momentum — from the average force applied to an object and the duration of contact (J = F × Δt).

The calculation uses the standard formula J = F × Δt and updates live with every change to the inputs. Everything runs client-side in your browser — fast, private, and free to use as often as you like.

Impulse equals the change in momentum, which is why airbags work: extending the collision time lowers the peak force for the same impulse.

Frequently Asked Questions

Is Impulse Calculator free to use?

Yes. Impulse Calculator is completely free, with no sign-up, no downloads, and no usage limits. You can use it as many times as you like on any device with a web browser.

How accurate is this calculator?

The calculator applies the standard formula (J = F × Δt) with full floating-point precision and rounds only the displayed result. For most practical purposes the results are exact.