Cost to Run a 100-watt 3D printer for 1 hour in Rhode Island
Running a 100-watt 3D printer for 1 hour uses 0.1 kWh and costs $0.029 at $0.29/kWh in Rhode Island. Do that every day and it adds up to $0.87 a month.
Calculate your own cost
- Per hour
- $0.0290.1 kWh
- Per day
- $0.0290.1 kWh
- Per week
- $0.2030.7 kWh
- Per month (30 days)
- $0.873 kWh
- Per year
- $10.5936.5 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 100-watt 3D printer cost per hour?
At $0.29/kWh, it costs $0.029 per hour. The maths: 100 W ÷ 1,000 = 0.1 kWh per hour, × $0.29 = $0.029.
How much does it cost per month?
Used 1 hours a day for 30 days, it costs about $0.87 per month and uses 3 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
0.1 kWh per day, 3 kWh per month and 36.5 kWh per year at 1 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?
Use the printer’s measured energy or power-monitor data for a precise job estimate. 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 $0.30 and at 30¢ it is $0.90. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in Rhode Island
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.1 kWh | $0.029 | $0.87 | $10.59 |
| 2 hours | 0.2 kWh | $0.058 | $1.74 | $21.17 |
| 3 hours | 0.3 kWh | $0.087 | $2.61 | $31.76 |
| 4 hours | 0.4 kWh | $0.116 | $3.48 | $42.34 |
| 5 hours | 0.5 kWh | $0.145 | $4.35 | $52.93 |
| 6 hours | 0.6 kWh | $0.174 | $5.22 | $63.51 |
| 7 hours | 0.7 kWh | $0.203 | $6.09 | $74.10 |
| 8 hours | 0.8 kWh | $0.232 | $6.96 | $84.68 |
| 9 hours | 0.9 kWh | $0.261 | $7.83 | $95.27 |
| 10 hours | 1 kWh | $0.29 | $8.70 | $105.85 |
| 11 hours | 1.1 kWh | $0.319 | $9.57 | $116.44 |
| 12 hours | 1.2 kWh | $0.348 | $10.44 | $127.02 |
| 13 hours | 1.3 kWh | $0.377 | $11.31 | $137.61 |
| 14 hours | 1.4 kWh | $0.406 | $12.18 | $148.19 |
| 15 hours | 1.5 kWh | $0.435 | $13.05 | $158.78 |
| 16 hours | 1.6 kWh | $0.464 | $13.92 | $169.36 |
| 17 hours | 1.7 kWh | $0.493 | $14.79 | $179.95 |
| 18 hours | 1.8 kWh | $0.522 | $15.66 | $190.53 |
| 19 hours | 1.9 kWh | $0.551 | $16.53 | $201.12 |
| 20 hours | 2 kWh | $0.58 | $17.40 | $211.70 |
| 21 hours | 2.1 kWh | $0.609 | $18.27 | $222.29 |
| 22 hours | 2.2 kWh | $0.638 | $19.14 | $232.87 |
| 23 hours | 2.3 kWh | $0.667 | $20.01 | $243.46 |
| 24 hours | 2.4 kWh | $0.696 | $20.88 | $254.04 |
How we worked it out
- Energy per hour: 100 W ÷ 1,000 = 0.1 kWh
- Cost per hour: 0.1 kWh × $0.29 = $0.029
- Cost per day: × 1 hours = $0.029
- Month and year: × 30 days = $0.87, × 365 days = $10.59
Rhode Island electricity prices
Rhode Island pays about $0.29 per kWh, which is 66% higher than the US average of $0.175. The same 3D printer would cost $0.525 a month at the national average.
What it costs in different places
Same 100-watt 3D printer, 1 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $0.525 |
| California | $0.32 | $0.96 |
| Texas | $0.155 | $0.465 |
| New York | $0.25 | $0.75 |
| Florida | $0.155 | $0.465 |
| Illinois | $0.17 | $0.51 |
| Pennsylvania | $0.18 | $0.54 |
| Ohio | $0.17 | $0.51 |
| Washington | $0.115 | $0.345 |
About 3D printer running costs
A 3D printer’s heated bed and hot end create changing power demand. Average draw varies by material, bed temperature and print duration.
Typical sizes: 100 W, 200 W, 350 W, 500 W.
How to spend less: Use the printer’s measured energy or power-monitor data for a precise job estimate.
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 Rhode Island. 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.