EVERYDAY CLARITY
Gravitational Force Calculator
What is the gravitational force between two point masses? Enter the stated inputs to calculate this model.
Your result
Attractive force magnitude
N
Result for the values shown.
Calculations run in your browser.
What to enter
| Input | Meaning and units |
|---|---|
| First mass (kg) | Enter first mass in kg; use the same basis as the other measurements. |
| Second mass (kg) | Enter second mass in kg; use the same basis as the other measurements. |
| Separation (m) | Enter separation in m; use the same basis as the other measurements. |
Understanding your result
Read Attractive force magnitude (N) in the units and model stated on this page. The formula force=6.67430e-11*m1*m2/(r*r) defines the relationship; measurement accuracy and model applicability are separate from numerical precision.
Common mistakes
- Mixing input units or changing the physical meaning of a variable without changing the model.
Check your calculation
- Use the worked example as a known reference case, then change one input at a time and check the direction and units of the response.
Calculation checks, sources and review limits
What is the gravitational force between two point masses?
What is the gravitational force between two point masses? Enter the stated inputs to calculate this model.
Common uses
- What is the gravitational force between two point masses
How it works
force=6.67430e-11*m1*m2/(r*r)
Worked example
Enter First mass: 1000 kg; Second mass: 2000 kg; Separation: 2 m. Results: Attractive force magnitude: 0.0000333715 N.