LED Series Current Limiting Resistor Calculator
Calculate the current-limiting resistor value, select the closest E24 resistor, and check power ratings for single or series LEDs.
Results
| Theoretical Resistance R | — Ω |
| Rec. E24 Standard Size | — Ω |
| Actual Running Current | — mA |
| Resistor Power PR | — W |
| Rec. Resistor Package Rating | — |
| LED Array Power | — W |
Formulas
R = (Vcc - N × Vf) / If
PR = If2 × R
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