Physics

Force Calculator

Newton's second law: F = ma.

Enter your values

ⓘ Live results

Results
Force
4800 N
In kilonewtons
4.8
In pounds-force
1079.083
Weight of this mass on Earth
14709.97 N
G-force equivalent
0.326 g

Working

  1. 1F = 1500 × 3.2 = 4800 N

Quick answer

Force equals mass times acceleration; one newton accelerates one kilogram at one metre per second squared.

F = m × a

How to use the Force Calculator

  1. 1Enter mass in kilograms.
  2. 2Enter acceleration in m/s².
  3. 3Read the force in newtons and pounds-force.

Worked example

Using the values the calculator loads with:

Inputs

  • Mass1500 kg
  • Acceleration3.2 m/s²

Results

  • Force4800 N
  • In kilonewtons4.8
  • In pounds-force1079.083
  • Weight of this mass on Earth14709.97 N
  • G-force equivalent0.326 g
  1. F = 1500 × 3.2 = 4800 N

Frequently asked questions

How much is one newton?

About the weight of a small apple — 102 grams under Earth gravity.

What is 1 g of acceleration?

9.80665 m/s², the standard acceleration due to Earth's gravity.

About this calculator

Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.