Center Of Mass Calculator
Result
Center Of Mass Calculator: calculate center of mass (m) from explicitly entered values.
Formula
- Model: xCM=(m1*x1+m2*x2)/(m1+m2). For two point masses along one spatial axis. Masses must be nonnegative and total mass positive; not a general 3D center-of-mass solver. This calculator uses the supplied inputs and does not provide a certified engineering, medical, or financial assessment.
- The main inputs are Mass 1, Position 1, Mass 2, Position 2. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Center Of Mass
- Mass 1: 2 kg
- Position 1: 0 m
- Mass 2: 3 kg
- Position 2: 10 m
Using Mass 1 (kg) = 2, Position 1 (m) = 0, Mass 2 (kg) = 3, Position 2 (m) = 10, the calculated result is Center of mass (m): 6.
Sample result: Calculating…
Frequently asked questions
What does the Center Of Mass calculate?
Center Of Mass Calculator: calculate center of mass (m) from explicitly entered values.
Which values should I enter?
Enter Mass 1, Position 1, Mass 2, Position 2 using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: xCM=(m1*x1+m2*x2)/(m1+m2).
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.