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Espresso Machine Electricity Cost Calculator
Beans get all the attention, but the machine itself is plugged in every day — heating up, holding temperature, steaming milk. Enter your machine's wattage, how long it stays on, and what you pay for electricity, and this calculator shows the honest total: kilowatt-hours, dollars a month and a year, and cents per shot.
1Your machine and your habit
Presets set the wattage slider — check the sticker on the back of your machine or its manual and drag to your exact number if it differs.
The rated draw on the label. The heater does not run flat-out the whole time — that is what the duty slider below is for.
Warm-up plus brewing plus any idle time before you switch it off. Left on all morning = 3–4 hours, not the 5 minutes of actual pulling.
Once hot, the heater cycles on and off to hold temperature — about 30–50% of the time for most home machines. Cold start and steaming push it higher.
Used to turn the monthly bill into a per-shot cost.
Find it on your power bill as the per-kWh rate. US homes average roughly $0.17; some states pay double that.
2What the socket is eating
Monthly cost scale: about $2.75 a month — the bar fills toward $10 a month.
?Three ways to cut the running cost
⏱️ On, shots, off
Idle hours cost more than the shots themselves. Pull your drinks in one session and switch off — run this calculator at your real idle time to see what the habit is worth.
🔌 A timer or smart plug pays for itself
If you brew at the same time each morning, a plug timer can start the warm-up before you wake and cut the machine off after — no all-day standby, no cold first shot.
🌡️ Thermoblocks sip, boilers gulp
On-demand thermoblock machines heat only the water you use. Big boilers hold a litre or more hot all day — great for back-to-back drinks, pricey for one shot at 7 a.m.
?Electricity Cost FAQ
Is espresso electricity really this cheap?
For most homes, yes — a few dollars a month, as the defaults above show. The expensive version is the machine left on 8–12 hours a day: drag the hours slider up and the yearly figure climbs past $100 fast. Time-on is the lever, not the shots.
Where do I find my machine's wattage?
On the rating sticker, usually on the back or underside, listed in watts (W) or as amps × volts. Small thermoblock machines are often around 1,000–1,200 W, single boilers around 1,300–1,500 W, and dual boilers up to about 1,600–2,000 W.
What is heater duty and why 40%?
The sticker wattage is the draw while the heater is actively heating. Once the boiler is at temperature the heater clicks on and off to hold it — on perhaps a third to half the time. 40% is a fair middle estimate; a cold start or long steaming session runs higher, a well-insulated boiler lower.
Does steaming milk change the number much?
A little. Steam mode runs the heater hard for a minute or two per drink, which nudges the duty up while you are on. If you steam for every drink, try the duty slider at 50–60% — the per-shot cost usually still lands in single-digit cents.
Are these costs exact?
The math is exact on your inputs: watts ÷ 1,000 × hours on × duty = kWh per day, times 30 for the month, priced at your per-kWh rate. Your real bill varies with how long you actually leave the machine on — which is exactly the habit this calculator is meant to make visible.