Electricity Cost Per Hour Calculator
U.S. residential EIA benchmark: 18.34¢/kWh ($0.1834) — June 2026 (Table 5.6.A)
The Electricity Cost Per Hour Calculator computes running costs per hour for any electrical appliance or machinery. It calculates hourly expenses in cents/hour, 8-hour work shifts, 24-hour continuous operation, and projected monthly expenses.
U.S. residential EIA benchmark: 18.34¢/kWh — June 2026
This is a state/national macroeconomic benchmark from EIA Table 5.6.A, not a guaranteed residential tariff. Your actual electric bill can vary by utility, electricity plan, usage band, fixed customer charges, fees, taxes, riders, and other applicable charges.
Electricity Cost Per Hour Calculator
Calculate precise hourly operating costs for appliances, tools, electronics, and electric heaters in cents per hour.
Editable. Enter your volumetric supply + delivery rate per kWh from your electric bill.
Defaults to $0 for pure volumetric electricity cost. Enter your utility's monthly/annual account fee if estimating a full bill.
Defaults to $0. Enter any specific municipal utility taxes or regulatory rider amounts from your bill.
Assumes electricity usage, rate, and fixed charges remain unchanged.
Volumetric Electricity Cost Quick-Lookup Table (1 kWh to 1,500 kWh)
Volumetric energy costs calculated at the approved U.S. residential EIA benchmark of 18.34¢/kWh ($0.1834) (June 2026 Table 5.6.A) alongside low-cost and high-cost state rate comparisons:
| Energy (kWh) | US Benchmark (18.34¢) | Low-Rate State (11.0¢) | High-Rate State (31.7¢) | Common Household Load Equivalent |
|---|---|---|---|---|
| 2 kWh | $0.37 (36.7¢) | $0.22 | $0.63 | 2 hours microwave oven / 40 min hair dryer |
| 6 kWh | $1.10 | $0.66 | $1.90 | 4 hours 1,500W space heater / 2 loads electric dryer |
| 23 kWh | $4.22 | $2.53 | $7.29 | Typical 1-day whole-home energy in spring/autumn |
| 30 kWh | $5.50 | $3.30 | $9.51 | Average US daily household electricity consumption |
| 50 kWh | $9.17 | $5.50 | $15.85 | Full charge for 50 kWh EV battery (~170 miles) |
| 55 kWh | $10.09 | $6.05 | $17.44 | Monthly electricity for refrigerator + LED lighting |
| 100 kWh | $18.34 | $11.00 | $31.70 | Compact studio flat monthly power (no HVAC) |
| 150 kWh | $27.51 | $16.50 | $47.55 | 1-person apartment: fridge, lights, TV, laptop |
| 185 kWh | $33.93 | $20.35 | $58.65 | 1-2 person apartment with occasional window AC |
| 300 kWh | $55.02 | $33.00 | $95.10 | 2-bedroom condo or small home non-summer |
| 350 kWh | $64.19 | $38.50 | $110.95 | Monthly electric water heater consumption (3-4 people) |
| 500 kWh | $91.70 | $55.00 | $158.50 | Small house / energy-efficient townhouse |
| 800 kWh | $146.72 | $88.00 | $253.60 | Standard 3-bedroom single-family home monthly bill |
| 1,000 kWh | $183.40 | $110.00 | $317.00 | Central AC cooling month or electric heat pump |
| 1,100 kWh | $201.74 | $121.00 | $348.70 | High summer AC load or large 4-person suburban home |
| 1,500 kWh | $275.10 | $165.00 | $475.50 | Large home, all-electric heating, pool pump + EV |
Hourly Electricity Cost Formula
Divide the device wattage by 1,000 to find energy in kWh used per hour, then multiply by your electricity rate in dollars or cents per kWh.
- Power in Watts (W): Appliance wattage rating from specification plate.
- Electricity Rate ($/kWh): Volumetric utility rate ($0.1834/kWh US EIA average — June 2026).
- Cost per Hour (¢/hr): Hourly electricity cost expressed in US cents.
Worked Example: 2,000-Watt Electric Oven
Calculating hourly running cost for a 2,000-Watt electric oven baking at the US benchmark electricity rate of 18.34¢/kWh ($0.1834/kWh — June 2026):
Calculation Assumptions & Cost-Saving Strategies
- Assumes continuous active load during the hour.
- For cycling loads (e.g. ovens reaching setpoint), effective power is roughly 50%–70% of peak wattage.
Use Microwave or Air Fryer for Small Meals
Air fryers and countertop microwaves use up to 70% less energy per hour than heating a full-size electric oven.
Turn Off Idle Gaming PCs
High-end gaming rigs draw 300W–600W under load (5¢–11¢/hr) and 50W–100W on idle.
US State Electricity Benchmark Quick Reference (June 2026)
Official EIA Table 5.6.A residential average electricity benchmarks across major US states (June 2026):
Frequently Asked Questions: Electricity Cost Per Hour Calculator
How much does it cost to run a 100-Watt light bulb for an hour? +
A 100W bulb consumes 0.1 kWh per hour. At 18.34¢/kWh (June 2026), it costs approximately 1.83 cents per hour (or ~$13.39/month if left on 24/7).
How much does a 1,500W space heater cost per hour? +
A 1,500W heater consumes 1.5 kWh per hour. At the EIA benchmark rate of 18.34¢/kWh, it costs approximately 27.51 cents per hour to operate.
How much does 2 kWh or 6 kWh of electricity cost per hour or day? +
Consuming 2 kWh of electricity costs approximately $0.37 (36.7 cents) at the US national benchmark rate of 18.34¢/kWh. Consuming 6 kWh costs approximately $1.10. Running a 2,000W appliance for 1 hour consumes 2 kWh ($0.37/hr).
Authoritative Data Sources & Technical Mappings
Sourced from the U.S. Energy Information Administration (EIA) (Electric Power Monthly Table 5.6.A (Average Price of Electricity to Ultimate Customers by End-Use Sector)). Period: June 2026 (Verified: 2026-06).
Appliance energy test standards (10 CFR Part 430), annual kWh baseline certifications, and ENERGY STAR verified product databases.
HVAC seasonal ratings (SEER2 / EER2 / HSPF2 per ASHRAE 90.1 / 90.2), water heating Uniform Energy Factor (UEF), and fluid pump affinity laws.
Nameplate electrical ratings (120V / 240V circuits), power supply unit (PSU) 80 Plus load curves, and component surge/operating wattages.
Independent Consumer Disclaimer
ElectricityBillCalc.com is an independent consumer estimation resource. We are not affiliated with, endorsed by, or operated by any public utility or governmental regulatory agency. Actual residential power bills vary based on utility rate schedules, local taxes, time-of-use peak multipliers, and seasonal tariff adjustments.