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Science
How to calculate series resistance
This tool calculates series resistance from Resistance 1 (Ω), Resistance 2 (Ω), Resistance 3 (Ω). Enter each quantity in its labelled field, then use the formula below to check the calculation.
Formula
R1 + R2 + R3
Worked example
- Resistance 1 (Ω)
- 10
- Resistance 2 (Ω)
- 20
- Resistance 3 (Ω)
- 30
Applying the formula to these values gives 60 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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