Electrical Load Calculator
Calculate electrical load and required service panel size
Building Details
Central AC or heat pump nameplate
Enter 0 if gas range
Dishwasher, disposal, microwave, etc.
Notice
Calculations based on NEC Article 220. Consult a licensed electrician for actual installation.
Load Analysis
General Lighting Load
6000 VA
3 VA per sq ft
Total Calculated Load
23125 Watts
After demand factors
Total Amperage
96.4 Amps
@ 240V
Recommended Service
100 Amp
Main service panel
Estimated Circuits
8 circuits
4 @ 120V, 4 @ 240V
Load Breakdown
Lighting/Receptacles: 5625 VA
Fixed Appliances: 12500 W
HVAC: 5000 W
Est. Panel Cost
$800.00
Panel only, installation extra
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.