Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Remote Work & Home Office
How to Calculate Work from Home Electricity Cost
kWh/day = (watts × hours) ÷ 1000; monthly cost = kWh/day × workdays × $/kWh.
Remote work adds a small but real power bill. Estimate the electricity cost of your home-office load per day and month.
Inputs
101000
116
131
0.050.8
Smart analysis
Recommendations
Tailored to your live inputs and result—guidance only, not professional advice.
- Interpret
Treat this as a planning estimate
Primary result: Monthly Electricity = $2.69. Re-run with optimistic and pessimistic inputs to understand the range—not just a single point.
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Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Device Load (W)
The “Device Load (W)” value used in this tool’s formula. Adjust it to see results update live.
Hours Powered / Day
The “Hours Powered / Day” value used in this tool’s formula. Adjust it to see results update live.
Workdays / Month
The “Workdays / Month” value used in this tool’s formula. Adjust it to see results update live.
Electricity Rate ($/kWh)
The “Electricity Rate ($/kWh)” value used in this tool’s formula. Adjust it to see results update live.
How this calculator works
Remote work adds a small but real power bill. Estimate the electricity cost of your home-office load per day and month. kWh/day = (watts × hours) ÷ 1000; monthly cost = kWh/day × workdays × $/kWh. Example: 120 W for 8 hours = 0.96 kWh/day. Twenty days at $0.14/kWh ≈ $2.69/month for that load.
kWh/day = (watts × hours) ÷ 1000; monthly cost = kWh/day × workdays × $/kWh.
Example: 120 W for 8 hours = 0.96 kWh/day. Twenty days at $0.14/kWh ≈ $2.69/month for that load.
When to use this Work From Home Electricity Cost
Common use cases
- Estimate electricity cost for a remote workday from device wattage, hours, and utility rate.
- Sanity-check with this case: 120 W for 8 hours = 0.96 kWh/day. Twenty days at $0.14/kWh ≈ $2.69/month for that load.
- The relationship is: kWh/day = (watts × hours) ÷ 1000; monthly cost = kWh/day × workdays × $/kWh.
Localized examples
- Remote Work & Home Office: the example on this page uses the same formula as the widget.
What you get
- Fields: Device Load (W), Hours Powered / Day, Workdays / Month, Electricity Rate ($/kWh)
- kWh/day = (watts × hours) ÷ 1000; monthly cost = kWh/day × workdays × $/kWh.
- Example on the page: 120 W for 8 hours = 0.96 kWh/day. Twenty days at $0.14/kWh ≈ $2.69/month for that load.
How to Calculate Work From Home Electricity Cost Step-by-Step
- 1Enter combined wattage of devices left on while working.
- 2Set hours powered per workday and workdays per month.
- 3Enter your electricity rate.
- 4Read daily kWh and monthly cost.
Governing formula
kWh/day = (watts × hours) ÷ 1000; monthly cost = kWh/day × workdays × $/kWh.
120 W for 8 hours = 0.96 kWh/day. Twenty days at $0.14/kWh ≈ $2.69/month for that load.
Example: set Device Load (W) = 120, Hours Powered / Day = 8, Workdays / Month = 20, then read the result.
Variable definitions
- deviceWatts
Device Load (W)
The “Device Load (W)” field. Default 120; typical range 10–1000.
- hoursPerDay
Hours Powered / Day
The “Hours Powered / Day” field. Default 8; typical range 1–16.
- workdaysPerMonth
Workdays / Month
The “Workdays / Month” field. Default 20; typical range 1–31.
- ratePerKwh
Electricity Rate ($/kWh)
The “Electricity Rate ($/kWh)” field. Default 0.14; typical range 0.05–0.8.
- The estimate (kWh/day = (watts × hours) ÷ 1000; monthly cost = kWh/day × workdays × $/kWh.) is for a meeting, not a signed forecast. Check the invoice or the contract.
- Nothing here is uploaded for the calculation itself.
Frequently Asked Questions
kWh = watts × hours ÷ 1000. Multiply by your $/kWh rate and the number of workdays you want to cover.
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4.8
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Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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