Ohms law resistance Calculator

How to calculate ohms law resistance

This tool calculates ohms law resistance from Voltage (V), Current (A). Enter each quantity in its labelled field, then use the formula below to check the calculation.

Formula

voltage ÷ current

Worked example

Voltage (V)

12

Current (A)

2

Applying the formula to these values gives 6 Ω.

What should I check?

Use SI units to explore mechanics, waves and basic DC electrical arithmetic. These are idealised educational formulas, not engineering specifications.

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