Power Planning Calculator

Sump Pump Backup Calculator

Estimate backup power needs for a sump pump during outages and heavy rain.

Planning estimate

Enter your setup to calculate an estimate.

Your Setup

Use equipment labels or manufacturer specifications whenever possible.

W
W

Preset values are approximate Honda planning figures. Use your pump label or manual when available.

Wh
%
min

Use the worst cycling rate you have observed during heavy rain.

W

Use zero if the backup system sleeps between pump cycles.

%

Planning estimate

Enter your setup
· Results update instantly.

Enter your setup to see a practical planning estimate.