Cost to Run a 400-watt washing machine for 20 hours in Pennsylvania
Running a 400-watt washing machine for 20 hours uses 8 kWh and costs $1.44 at $0.18/kWh in Pennsylvania. Do that every day and it adds up to $43.20 a month.
Calculate your own cost
- Per hour
- $0.0720.4 kWh
- Per day
- $1.448 kWh
- Per week
- $10.0856 kWh
- Per month (30 days)
- $43.20240 kWh
- Per year
- $525.602,920 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 400-watt washing machine cost per hour?
At $0.18/kWh, it costs $0.072 per hour. The maths: 400 W ÷ 1,000 = 0.4 kWh per hour, × $0.18 = $0.072.
How much does it cost per month?
Used 20 hours a day for 30 days, it costs about $43.20 per month and uses 240 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
8 kWh per day, 240 kWh per month and 2,920 kWh per year at 20 hours a day. A kWh is one kilowatt (1,000 W) used for one hour. It is the unit on your electricity bill.
How can I lower the cost?
Wash with cold water when you can. Check your bill for the exact rate and enter it above.
Does my electricity rate change the answer?
Yes, a lot. At 10¢ per kWh the monthly cost is $24.00 and at 30¢ it is $72.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in Pennsylvania
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.4 kWh | $0.072 | $2.16 | $26.28 |
| 2 hours | 0.8 kWh | $0.144 | $4.32 | $52.56 |
| 3 hours | 1.2 kWh | $0.216 | $6.48 | $78.84 |
| 4 hours | 1.6 kWh | $0.288 | $8.64 | $105.12 |
| 5 hours | 2 kWh | $0.36 | $10.80 | $131.40 |
| 6 hours | 2.4 kWh | $0.432 | $12.96 | $157.68 |
| 7 hours | 2.8 kWh | $0.504 | $15.12 | $183.96 |
| 8 hours | 3.2 kWh | $0.576 | $17.28 | $210.24 |
| 9 hours | 3.6 kWh | $0.648 | $19.44 | $236.52 |
| 10 hours | 4 kWh | $0.72 | $21.60 | $262.80 |
| 11 hours | 4.4 kWh | $0.792 | $23.76 | $289.08 |
| 12 hours | 4.8 kWh | $0.864 | $25.92 | $315.36 |
| 13 hours | 5.2 kWh | $0.936 | $28.08 | $341.64 |
| 14 hours | 5.6 kWh | $1.01 | $30.24 | $367.92 |
| 15 hours | 6 kWh | $1.08 | $32.40 | $394.20 |
| 16 hours | 6.4 kWh | $1.15 | $34.56 | $420.48 |
| 17 hours | 6.8 kWh | $1.22 | $36.72 | $446.76 |
| 18 hours | 7.2 kWh | $1.30 | $38.88 | $473.04 |
| 19 hours | 7.6 kWh | $1.37 | $41.04 | $499.32 |
| 20 hours | 8 kWh | $1.44 | $43.20 | $525.60 |
| 21 hours | 8.4 kWh | $1.51 | $45.36 | $551.88 |
| 22 hours | 8.8 kWh | $1.58 | $47.52 | $578.16 |
| 23 hours | 9.2 kWh | $1.66 | $49.68 | $604.44 |
| 24 hours | 9.6 kWh | $1.73 | $51.84 | $630.72 |
How we worked it out
- Energy per hour: 400 W ÷ 1,000 = 0.4 kWh
- Cost per hour: 0.4 kWh × $0.18 = $0.072
- Cost per day: × 20 hours = $1.44
- Month and year: × 30 days = $43.20, × 365 days = $525.60
Pennsylvania electricity prices
Pennsylvania pays about $0.18 per kWh, which is 3% higher than the US average of $0.175. The same washing machine would cost $42.00 a month at the national average.
What it costs in different places
Same 400-watt washing machine, 20 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $42.00 |
| California | $0.32 | $76.80 |
| Texas | $0.155 | $37.20 |
| New York | $0.25 | $60.00 |
| Florida | $0.155 | $37.20 |
| Illinois | $0.17 | $40.80 |
| Pennsylvania | $0.18 | $43.20 |
| Ohio | $0.17 | $40.80 |
| Washington | $0.115 | $27.60 |
About washing machine running costs
Washing machines use little electricity themselves. The cost comes mostly from heating water.
Typical sizes: 400 W, 500 W, 700 W, 1,000 W.
How to spend less: Wash with cold water when you can.
What this estimate assumes
- The appliance draws its full stated wattage the whole time it is on. Real units with a thermostat cycle off and cost less.
- Wattage is the typical label value, not a measured value. Check the label on your own appliance.
- The rate is an approximate residential average in Pennsylvania. Your bill may include fixed fees, tiers or time-of-use pricing. Edit the rate above.
- A month is 30 days and a year is 365 days.