Physics Calculators
Check laboratory quantities with clear SI conversions and formulas you can follow.
SI units & dimensional checks
Convert simple and compound physics units, expand derived SI units, and detect incompatible dimensions with transparent scale factors.
Open calculatorPhysical constants from gradients
Turn a graph gradient into g, spring constant, resistivity or an exponential time scale, with first-order propagated uncertainty.
Open calculatorPendulum period
Calculate a simple pendulum period from length, or length from period. Choose length units and gravitational acceleration, with full working.
Open calculatorResistivity & resistance
Solve wire resistance, resistivity, length or area. Enter cross-sectional area or circular-wire diameter and see every SI unit conversion.
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