Maximum Power Transfer Calculator

Determine optimal load resistance and maximum power delivery from a source.

Open-circuit voltage of source.
V
Internal resistance of source.
Ω
Actual connected load resistance.
Ω

Results

Max Possible Power-mW
Actual Load Power-mW
Power Transfer Efficiency-%
Optimal Load Resistance-Ω
References: Hayt Engineering Circuit Analysis; Nilsson Electric Circuits