Mathematics · Mathematical Physics
Universal Gravitational Force Calculator
Calculate Newtonian gravitational attraction between two point masses.
Inputs and results stay in this browser. Change one value at a time to explore the relationship.
Calculation steps
- Mass product=1000×1000=1000000.
- Distance squared=2²=4.
- Force=6.6743e-11×1000000÷4=0.00001668575 N.
Problem → model → reason → result
What problem does this model solve?
Calculate Newtonian gravitational attraction between two point masses.
Why does the model apply?
Gravity grows with both masses and decreases with the square of their centre-to-centre separation.
What assumptions does it make?
Values use the displayed units, the named classical model describes the system, and idealisations such as constant acceleration, point particles or negligible drag apply where stated.
Formula
F=Gm₁m₂/r²
Calculation and working
The calculator above substitutes your inputs into the model and leaves the calculation steps visible so the answer can be checked rather than merely accepted.
What does the result mean?
The result answers the stated problem in the units implied by your inputs. Read its sign, size and units together, then compare it with the original values before drawing a conclusion.
Worked example
Two 1000 kg masses 2 m apart attract with approximately 1.6686×10⁻⁵ N.
Common mistake
Use centre-to-centre distance and SI units when using the displayed gravitational constant.
When does this model not apply?
Ideal classical models omit effects such as drag, relativity, extended-body geometry, material response and measurement uncertainty unless explicitly included.
How to learn with this calculator
Begin with the worked example, then change one value while keeping the others fixed. Compare the new result and calculation steps to identify which part of the formula changed.
Clear answers
Frequently asked questions
What does the Gravitational force do?
Calculate Newtonian gravitational attraction between two point masses.
How does the Gravitational force work?
The calculator applies F=Gm₁m₂/r². Gravity grows with both masses and decreases with the square of their centre-to-centre separation.
What can I learn from the Gravitational force?
It connects the mathematical rule to your chosen numbers and shows each calculation step. Change one input at a time to see how the result responds.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the steps to understand the method, then verify important school or professional work using the notation and rounding rules required in your setting.
Last reviewed 2026-07-14. Calculations tested 2026-07-14.