Gravity Calculator
Calculate gravitational attraction between masses.
About Gravity Calculator
Gravitational attraction for Gravity scales with the product of the masses and falls off with the square of the distance between them. The inverse-square falloff is why gravity is only noticeable for very large masses.
Formula
Gravity
F = G.m1.m2 / r^2
- G
- Gravitational constant, 6.674x10^-11
Worked example
With the default values below, Gravity Calculator returns Gravitational Force of 972.749. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Mass 1minimum 0 kg
- 5,970,000,000,000,000,000,000,000 kg
- Mass 2minimum 0 kg
- 100 kg
- Distanceminimum 0 m
- 6,400,000 m
Results
- Gravitational Force
- 972.749 N
- Acceleration of Mass 2
- 9.7275 m/s^2
- Field Strength
- 9.728 N/kg
Step by step
- 1Values used
- 2Gravity
- 3Gravitational Force= 972.749 N
- 4Acceleration of Mass 2= 9.7275 m/s^2
- 5Field Strength= 9.728 N/kg
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Gravity calculated?
F = G.m1.m2 / r^2 Gravitational attraction for Gravity scales with the product of the masses and falls off with the square of the distance between them.
Why does Gravity matter?
The inverse-square falloff is why gravity is only noticeable for very large masses.
What values do I need to enter?
This calculator takes 3 inputs: Mass 1, Mass 2, Distance. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.