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Both calculators run independently — change the inputs on either side to compare results.

Conduit Fill Calculator

Determine how many wires of a given AWG gauge fit safely inside an electrical conduit. Essential for electricians planning conduit runs to meet NEC fill-percentage requirements.

Conduit Diameter (inches)

Wire Gauge (AWG) (AWG)

Fill in the required fields to see your result.

Electrical Home

UPS Runtime Calculator

Estimate how many minutes a UPS (uninterruptible power supply) will keep your equipment running on battery backup, based on battery capacity, connected load, and UPS efficiency. Use it when sizing a UPS for a server, computer workstation, or network equipment.

Connected Load (watts)

Battery Capacity

Power Factor

UPS Efficiency

Fill in the required fields to see your result.

Key differences

	Conduit Fill Calculator	UPS Runtime Calculator
Category	Electrical Home	Electrical Home
Inputs required	2	4
Result	Maximum Wires (wires)	Runtime (minutes)
What it does	Determine how many wires of a given AWG gauge fit safely inside an electrical conduit. Essential for electricians planning conduit runs to meet NEC fill-percentage requirements.	Estimate how many minutes a UPS (uninterruptible power supply) will keep your equipment running on battery backup, based on battery capacity, connected load, and UPS efficiency. Use it when sizing a UPS for a server, computer workstation, or network equipment.