Capacitor helper

Replacement size, parallel total and hard-start sizing.

More electrical calculators

Use it on the job

The same calculators work offline in the HVACopedia app, with your favourites one tap away.

Open the app

Calculation aids and reference figures for licensed technicians. Always follow the manufacturer’s data plate and manual for the exact model, and local codes. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Pressures are typical saturation values and change with load and airflow.