Centripetal Force Calculator
Centripetal force magnitude = mass × speed² / radius.
Open toolGravitational Force Calculator
Newtonian gravitational force magnitude = G × m1 × m2 / distance². Uses G = 6.67430 × 10⁻¹¹ m³/(kg·s²).
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Enter the inputs, then select Calculate.
Your result
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Result will appear here
How Gravitational Force Calculator works
Newtonian gravitational force magnitude = G × m1 × m2 / distance².
Uses G = 6.67430 × 10⁻¹¹ m³/(kg·s²). Point masses or spherical bodies; no relativistic model. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded. Mass inputs support up to 10⁴⁰ kg to include astronomical examples.
How to use Gravitational Force Calculator
Follow the labelled inputs.
Enter first point mass (kg)
Replace the example with first point mass (kg). The field labels specify the expected format and units.
Input and settings
Check the remaining inputs
Set second point mass (kg), centre-to-centre distance (m). Uses G = 6.67430 × 10⁻¹¹ m³/(kg·s²).
Tool result
Run, review and save
Select Calculate. Review the calculated result, then copy it or download the result text.
Review the details
Examples and uses for Gravitational Force Calculator
Check the supplied example
The starting example produces 0.0000333715 N. Newtonian gravitational force magnitude = G × m1 × m2 / distance².
Use your own inputs
Read the labels for first point mass (kg) and second point mass (kg), centre-to-centre distance (m). Uses G = 6.67430 × 10⁻¹¹ m³/(kg·s²).
Record a reviewed result
Copy the calculated result into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.
How to read the result
Read the units and assumptions with the output.
Newtonian gravitational force magnitude = G × m1 × m2 / distance².
Uses G = 6.67430 × 10⁻¹¹ m³/(kg·s²). Point masses or spherical bodies; no relativistic model. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded. Mass inputs support up to 10⁴⁰ kg to include astronomical examples.
Supported input and limits
Check the stated scope before you run it.
Uses G = 6.67430 × 10⁻¹¹ m³/(kg·s²). Point masses or spherical bodies; no relativistic model. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded. Mass inputs support up to 10⁴⁰ kg to include astronomical examples.
The input stays in this browser. Copy result and Download save the same displayed text.
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Open toolGravitational Force Calculator: common questions
Answers about using Gravitational Force Calculator and understanding its results.
What assumptions and input limits apply?
Uses G = 6.67430 × 10⁻¹¹ m³/(kg·s²). Point masses or spherical bodies; no relativistic model. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded. Mass inputs support up to 10⁴⁰ kg to include astronomical examples.
How can I save the output?
Use Copy result to copy the displayed text, or Download to save it as a text file. The tool runs in your browser and does not require an account.
Calculate with your input
Check the calculated result, then copy or download it.