Energy Cost Calculator
Calculate how much it costs to run any appliance by combining wattage, hours of use, and your electricity rate. Use it to estimate monthly bills, compare devices before buying, or decide when a higher-efficiency model will pay for itself.
Estimated costs based on the rate you enter. Actual bills vary with time-of-use pricing, taxes, service fees, and seasonal tariffs.
See full breakdown for 1,500WHow Electricity Billing Works
Electricity is billed in kilowatt-hours (kWh). One kWh means 1,000 watts running for one hour, or equivalently, 100 watts running for 10 hours. Your electric meter tracks total kWh consumed, and your utility charges a rate per kWh.
The Formula
Three variables determine cost: wattage (how much power the appliance uses), duration (how long it runs), and rate (what you pay per kWh). Changing any one of these changes the cost proportionally. Running a 1500W heater 4 hours instead of 8 halves the cost. Moving from a $0.17/kWh rate to $0.09/kWh nearly halves it again.
US Electricity Rate Bands
The table below shows illustrative rate bands derived from the US residential average of $0.17/kWh (EIA Electric Power Monthly, last reviewed April 2026). Actual state rates move with tariff changes, seasonal adjustments, and fuel costs. Use these bands as a rough guide and your utility bill for the exact number.
| Region | Typical Range | 1500W Heater (8h/day) |
|---|---|---|
| Low cost (ID, WA, UT) | $0.11-0.14/kWh | $1.33-1.63/day |
| Average (TX, FL, OH) | $0.14-0.18/kWh | $1.73-2.14/day |
| High cost (CA, NY, CT) | $0.23-0.36/kWh | $2.75-4.28/day |
| Hawaii | $0.41+/kWh | $4.90+/day |
Bands are derived as multiples of the US residential average (last reviewed April 2026), not live state rates. The EIA updates the residential average monthly; check it for the current figure.
Global Rate Snapshot
This is a reference snapshot, not a live feed. Rates are pulled from EIA, Ofgem, Eurostat, and IEA, each with a different refresh cadence (monthly to biannual). Last reviewed April 2026. For the live answer for your specific scenario, use the calculator at the top of this page with your own rate.
Residential electricity rates vary by country due to generation mix, subsidies, taxes, and grid costs. Below is a snapshot of residential rate estimates in local currency, along with the daily cost of running a 1500W appliance for 8 hours.
| Country | Typical Rate | 1500W × 8h/day | Source | Cadence |
|---|---|---|---|---|
| United States | $0.17/kWh (USD) | $2.04/day | EIA | monthly |
| Canada | C$0.17/kWh (CAD) | C$2.04/day | IEA | monthly |
| United Kingdom | £0.27/kWh (GBP) | £3.24/day | Ofgem | quarterly |
| Ireland | €0.33/kWh (EUR) | €3.96/day | Eurostat | biannual |
| Germany | €0.40/kWh (EUR) | €4.80/day | Eurostat | biannual |
| France | €0.25/kWh (EUR) | €3.00/day | Eurostat | biannual |
| Australia | A$0.35/kWh (AUD) | A$4.20/day | IEA | monthly |
| New Zealand | NZ$0.30/kWh (NZD) | NZ$3.60/day | IEA | monthly |
| India | ₹8.00/kWh (INR) | ₹96/day | IEA | monthly |
| Japan | ¥30/kWh (JPY) | ¥360/day | IEA | monthly |
| Singapore | S$0.33/kWh (SGD) | S$3.96/day | IEA | monthly |
| Philippines | ₱11.00/kWh (PHP) | ₱132/day | IEA | monthly |
Rates are residential averages at the time of the last review. Business rates are often lower due to volume discounts, and peak/off-peak time-of-use tariffs can shift the effective rate by ±50%. Use your actual bill for precise figures.
Estimated Appliance Costs
Planning wattages for ranking common loads, not measured averages for any specific model. Computed at $0.17/kWh (US residential average, last reviewed April 2026) running 8 hours per day. Real usage varies with duty cycle, efficiency rating, age, and local rate; use the calculator at the top of this page with your own wattage and rate for an estimate tied to your situation.
| Appliance | Watts | Per Hour | Per Day (8h) | Per Month |
|---|---|---|---|---|
| LED Light Bulb | 10W | $0.00 | $0.01 | $0.41 |
| Laptop | 65W | $0.01 | $0.09 | $2.65 |
| Ceiling Fan | 75W | $0.01 | $0.10 | $3.06 |
| LED TV (55") | 100W | $0.02 | $0.14 | $4.08 |
| Refrigerator | 150W | $0.03 | $0.20 | $6.12 |
| Gaming PC | 500W | $0.09 | $0.68 | $20.40 |
| Washing Machine | 500W | $0.09 | $0.68 | $20.40 |
| Microwave | 1,200W | $0.20 | $1.63 | $48.96 |
| Space Heater | 1,500W | $0.26 | $2.04 | $61.20 |
| Toaster Oven | 1,500W | $0.26 | $2.04 | $61.20 |
| Electric Kettle | 1,500W | $0.26 | $2.04 | $61.20 |
| Hair Dryer | 1,800W | $0.31 | $2.45 | $73.44 |
| Dishwasher | 1,800W | $0.31 | $2.45 | $73.44 |
| Electric Oven | 2,500W | $0.43 | $3.40 | $102.00 |
| Air Conditioner (window) | 3,500W | $0.60 | $4.76 | $142.80 |
| Electric Water Heater | 4,500W | $0.77 | $6.12 | $183.60 |
| Clothes Dryer | 5,000W | $0.85 | $6.80 | $204.00 |
| EV Charger (Level 2) | 7,200W | $1.22 | $9.79 | $293.76 |
Related Calculators
Frequently Asked Questions
Data Sources & References
This page cites the following data sources for its rate and cost figures. Energy prices move with tariffs, fuel costs, and regulatory updates, so treat the cached values used on this site as point-in-time estimates and verify against the live source for the current figure.
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EIA Electric Power Monthly.
Monthly residential, commercial, and industrial electricity prices by US state. Source of the ~$0.17/kWh US national average residential figure used on this site (last reviewed April 2026). The EIA updates these figures monthly, so treat any cached value as a point-in-time estimate, not a live rate.
US Energy Information Administration. Reference → -
Ofgem Energy Price Cap.
UK retail energy price cap and typical domestic unit rates. Source of the ~£0.27/kWh UK average figure used on this site (last reviewed April 2026). Ofgem updates the cap quarterly; verify against the current cap for the exact figure.
Office of Gas and Electricity Markets (UK regulator). Reference → -
Eurostat Electricity Prices.
Biannual residential and industrial electricity prices across EU member states. Source of the EU country rates used in the country comparison table (last reviewed April 2026). Eurostat releases updated data twice a year.
European Commission / Eurostat. Reference → -
IEA Electricity Statistics.
International Energy Agency global electricity data, including residential end-use prices for OECD and non-OECD countries. Source for non-EU international rates (Japan, Singapore, Australia, etc.) used in the country comparison table (last reviewed April 2026).
International Energy Agency. Reference →
Disclaimer: The cost figures on this page are estimates based on cached rate data from the sources above. Actual costs depend on your utility tariff, time-of-use pricing, and local taxes. Check your bill or the source links for current values.