Appliance Load Calculator
Use this appliance load workflow for preliminary row-by-row household appliance load arithmetic when appliance VA, quantity, demand factors, continuous multipliers, voltage, phase, and a comparison ampere value are known.
- Connected appliance load
- VA
- Demand appliance load
- VA
- Continuous adder
- VA
- Adjusted appliance load
- VA
- Appliance current
- A
- Entered capacity margin
- A
Calculation details
- Largest row load
- VA
- Effective demand factor
- %
- Counted appliances
- count
- Counted appliance rows
- rows
- Phase multiplier
- x
- Calculation basis
- Selection boundary
Recent results
Formulas
- Row connected VA = quantity x VA each
- Row demand VA = row connected VA x demand factor percent / 100
- Row continuous adder VA = row demand VA x (continuous multiplier percent / 100 - 1)
- Adjusted appliance VA = sum of row demand VA + sum of row continuous adder VA
- Appliance current = adjusted appliance VA / (phase multiplier x voltage)
- Effective demand percent = adjusted appliance VA / connected appliance VA x 100
Use this calculator
Total user-entered appliance rows, apply entered demand and continuous factors, estimate adjusted appliance VA, current, largest row, row count, and entered-capacity margin.
Read the result
Review the calculated values with their displayed units and assumptions. The result is a planning aid for the stated inputs, not a final equipment or installation decision.
Check before final work
This appliance load estimate uses user-entered appliance rows and factor assumptions. It does not apply dwelling optional methods, dryer or range demand tables, branch-circuit rules, service sizing, or code compliance.
FAQs
Does this calculate dwelling appliance demand?
No. You enter the appliance rows and demand factors. This page only performs transparent row arithmetic.
Can I include dryers or ranges here?
You can enter any user-defined row for planning arithmetic, but dryer and range demand rules need separate code review.
Can this size a circuit or service?
No. It estimates appliance load and compares it with an entered ampere value. Final circuit, feeder, or service sizing needs adopted-code and equipment review.