Formula verified · Deterministic calculation

Coulomb Force Calculator

Calculate electrostatic force between two point charges separated by a positive distance. The certified deterministic engine preserves the sign of the charge product.

Charge 1Charge 2Distance

Result0.0089875517923

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Result methodology

Deterministic calculation using the displayed physics formula and supplied compatible units.

Solution steps

Coulomb Force = 0.008987551792299998

How this calculator works

Coulomb force is F = kq₁q₂/r² using k = 8.9875517923×10⁹.

Formula

F=kq₁q₂/r²

Signed electrostatic force using Coulomb's law.

Worked example

Verified example is a verified test case used by the calculation engine.

Assumptions and limitations

Charges are treated as point charges.
Distance must be greater than zero.
The sign indicates the charge-product interaction convention.

Methodology & sources

This calculator uses deterministic, versioned calculation logic. The formula and verified examples above are part of the calculation definition used by CalcuMint.

CalcuMint deterministic physics engine

Frequently asked questions

Why can the result be negative?

Opposite-signed charges produce a negative signed result under this convention.

Is distance squared?

Yes. Coulomb force varies inversely with r².