Energy, Electricity & UtilitiesHourly Cost
Energy Cost Per Hour Calculator
Calculate instant electricity costs per minute, per hour, per 8-hour workday shift, and per 24-hour day for any equipment wattage.
Load Wattage & Hourly Rate
Cost per Hour
—
continuous running
Cost per Month
—
at schedule hours
Cost per Day
—
active daily hours
Annual Run Cost
—
52 weeks annualized
Hourly Power Cost Formula
Cost per Hour = (Device Wattage ÷ 1,000) × Electricity Rate per kWh | Cost per Minute = Cost per Hour ÷ 60- Device Wattage: Operating electrical load in Watts.
- Rate per kWh: Electricity price per kilowatt-hour.
- Shift & Continuous Multipliers: Extrapolates to standard 8-hour work shifts, 24-hour full days, and 720-hour continuous monthly runs.
Step-by-Step Worked Example
Scenario:
Calculation Steps:
Result:
How to Use This Calculator
Assumptions & Limitations
- Assumes steady-state continuous operation at full rated wattage.
- 1,000 Watts for 1 hour equals exactly 1.0 kilowatt-hour (kWh).
Frequently Asked Questions
How much does it cost to run a 1,500-Watt space heater for one hour?
At the US average electricity rate of $0.165 per kWh, running a 1,500W heater on High costs approximately $0.248 (25 cents) per hour, or about $2.00 for an 8-hour workday.
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