01 · Appliances
Your appliances, priced.
AC, dryer, EV, pool pump — enter watts and hours, see dollars. Defaults match typical US homes.
Home energy costs, in dollars
How Much Does It Cost to Run It?
34 free calculators for US homes: appliances, electric bills, time-of-use rates, EV charging, solar payback, batteries, and generators. Type your watts and rate — get dollars per hour, month, and year.
Method
Your bill, explained.
02 · Rate plans
Your rate plan, compared.
Flat vs time-of-use, EV vs gas, solar payback — same usage, honest math.
03 · Big decisions
Your decision, backed by math.
Repair or replace? LED payback? Battery size? Get the number, then decide.
Calculators
What do you want to price?
Calculator
3D Printer Electricity Cost
Estimate 3D printer cost per print hour.
Open calculatorCalculator
AC Electricity Cost Calculator
Estimate air conditioner running cost by tonnage and hours.
Open calculatorCalculator
Appliance Replacement Savings
Decide repair vs replace with payback math.
Open calculatorArticles
Learn the why behind the bill.
Article
How Solar Payback Really Works
Learn how solar payback works in 2026, with clear formulas, bill savings, export credits, upfront costs, and a checkable example.
Article
What EV Charging Really Costs in 2026
What EV charging really costs in 2026: calculate home and public charging, losses, fees, monthly electricity use, and charger setup costs.
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Stop guessing your electric bill.
Type your watts and rate, get the dollar answer. Saving scenarios to Workspace is optional.