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- UPS RuntimeEstimate backup time from battery energy and load power.
- Home Backup Battery SizingSize a backup battery bank for essential loads, runtime, voltage, and depth of discharge.
- Inverter Peak Load & SurgeSum motor running watts and staggered surge demand—get continuous load, peak W, and a recommended pure-sine inverter tier.
- Battery Bank Size (Ah)Size a battery bank in amp-hours from load, runtime, and voltage.
- Ah to Wh ConverterConvert amp-hours to watt-hours using battery voltage.
- Wh to Ah ConverterConvert watt-hours to amp-hours using system voltage.
- kVA to kW ConverterConvert apparent power (kVA) to real power (kW) using power factor.
- Conductor Resistance & Te…Calculate copper or aluminum conductor resistance from cross-section, length, and operating temperature.
- Reactive Power & Power Fa…Convert kVA to real kW and reactive kVAR for motor and driver loads—plan inverter and conductor sizing.
- Battery DoD to Energy YieldConvert nominal battery capacity and depth of discharge to usable kWh for backup and critical-load planning.
- kW to HP ConverterConvert kilowatts to mechanical horsepower instantly.
- Watts to AmpsConvert electrical power (watts) to current (amps) at a given voltage.