10 tools

Science & Engineering tools

Science and engineering tools: Ohm's law, resistor color codes, chemical equations and more.

Search by name, task or keyword.

10 results

Solve V, I, R, P from any two values.

Current-limiting resistor and nearest E24.

Vin, R1, R2 → Vout; solve any missing value.

Value + prefix ↔ base SI (yotta…yocto).

GPA from letter grades on a 4.0 scale.

4-band colors ↔ ohms (and reverse).

pH / pOH / [H+] / [OH-] conversions.

Solve u, v, a, t, s for constant acceleration.

Compute molar mass from a chemical formula.

Find integer coefficients for a reaction.