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Resistor Wattage Calculator
Required wattage rating with safety factor
📖 Resistor Wattage Calculator
Resistor power P = V²/R = I²R. Choose a rating several times higher for reliability.
📊 Result
💡 Tips & Information
- Resistor Wattage Calculator uses standard engineering formulas; always verify with project requirements.
- Keep units consistent across all inputs to avoid conversion errors.
- Field conditions, tolerances, and safety factors may require additional adjustments.