EVERYDAY CLARITY
Resistance Calculator
What resistance corresponds to my voltage and current. Enter the quantities below to calculate the result.
Your result
Resistance
Ω
Reference calculation or estimate for example inputs; assumptions and limitations apply.
Calculations run in your browser.
What to enter
| Input | Meaning and units |
|---|---|
| DC voltage (V) | Enter dc voltage in V; use the same basis as the other measurements. |
| DC current (A) | Enter dc current in A; use the same basis as the other measurements. |
Understanding your result
Read Resistance (Ω) in the units and model stated on this page. The formula resistance=voltage/current defines the relationship; measurement accuracy and model applicability are separate from numerical precision.
Common mistakes
- Mixing input units or changing the physical meaning of a variable without changing the model.
Check your calculation
- Use the worked example as a known reference case, then change one input at a time and check the direction and units of the response.
Calculation checks, sources and review limits
What resistance corresponds to my voltage and current?
What resistance corresponds to my voltage and current. Enter the quantities below to calculate the result.
Common uses
- What resistance corresponds to my voltage and current
How it works
Divide voltage by current.
Worked example
Enter DC voltage: 12 V; DC current: 2 A. Results: Resistance: 6 Ω.