Electrical Wire Sizing Calculator vs HVAC Duct 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.
Electrical Wire Sizing Calculator
Determines the minimum wire cross-sectional area needed to keep voltage drop within safe limits for a given load current and run length. Use it when wiring outlets, motors, or solar systems to avoid overheating and energy loss.
- Answers
- Minimum Wire Area Required (kcmil)
- Inputs
- Load Current, One-Way Distance, System Voltage, Maximum Voltage Drop, Conductor Material
HVAC Duct Sizing Calculator
Calculate the required diameter or dimensions of HVAC ducts based on air flow rate and design velocity. Use this when designing ventilation systems to balance air delivery with noise and pressure loss constraints.
- Answers
- Duct Dimension (inches)
- Inputs
- Air Flow Rate, Design Air Velocity, Duct Shape, Aspect Ratio (for rectangular)
At a glance
| Electrical Wire Sizing Calculator | HVAC Duct Sizing Calculator | |
|---|---|---|
| Category | Engineering | Engineering |
| Answers | Minimum Wire Area Required | Duct Dimension |
| Inputs | 5 | 4 |
| Result unit | kcmil | inches |
When to use each
Determines the minimum wire cross-sectional area needed to keep voltage drop within safe limits for a given load current and run length. Use it when wiring outlets, motors, or solar systems to avoid overheating and energy loss.
Calculate the required diameter or dimensions of HVAC ducts based on air flow rate and design velocity. Use this when designing ventilation systems to balance air delivery with noise and pressure loss constraints.