Generator Sizing Calculator vs Sump Pump Sizing Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Generator Sizing Calculator
Calculate the minimum generator wattage needed to power your home's essential loads, motors, and well pump during an outage. Use it before buying a standby or portable generator to avoid under-sizing.
- Answers
- Minimum Generator Size (watts)
- Inputs
- Essential Loads, Motor Load (HP), Well Pump (if any), Startup Factor, Safety Margin
Sump Pump Sizing Calculator
Determine the minimum sump pump capacity (GPH) needed to protect your basement given its area, local peak rainfall, soil drainage, and discharge lift height. Use it before purchasing a pump or when upgrading an undersized unit.
- Answers
- Required Pump Capacity (GPM)
- Inputs
- Basement Area, Maximum Rainfall Rate, Vertical Lift Height, Soil Drainage
At a glance
| Generator Sizing Calculator | Sump Pump Sizing Calculator | |
|---|---|---|
| Category | Electrical Home | Plumbing |
| Answers | Minimum Generator Size | Required Pump Capacity |
| Inputs | 5 | 4 |
| Result unit | watts | GPM |
When to use each
Calculate the minimum generator wattage needed to power your home's essential loads, motors, and well pump during an outage. Use it before buying a standby or portable generator to avoid under-sizing.
Determine the minimum sump pump capacity (GPH) needed to protect your basement given its area, local peak rainfall, soil drainage, and discharge lift height. Use it before purchasing a pump or when upgrading an undersized unit.