Shop vac vs. air compressor: running cost
A shop vac is cheaper to run: about $3 a year versus $7 for an air compressor at typical use and 17.99¢/kWh, a $4 difference.
| Shop vac | Air compressor | |
|---|---|---|
| Typical watts | 1,200 W | 1,500 W |
| Watt range | 600–1,500 W | 150–4,000 W |
| Typical use | 15 minutes a day, 1 days a week | 1 hour a day, 1 days a week |
| Energy per year | 16 kWh | 39 kWh |
| Cost per hour | 22¢ | 13¢ |
| Cost per day | 0.8¢ | 1.9¢ |
| Cost per month | $0.23 | $0.59 |
| Cost per year | $3 | $7 |
| Per year in Hawaii (43.51¢) | $7 | $17 |
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What drives the difference
- Shop vac: Shop vacs draw 8-12 A (about 1,000-1,400 W) while running; most are used only minutes a week.
- Air compressor: Pancake compressors draw 12-15 A while running; they cycle on and off with tool use, so average draw is about half rated.
Ways to cut either cost
Cyclone dust separator
Keeps the filter clear so suction stays high.
See options on Amazon Air hose leak-free fittings
Tight couplers stop leaks that make the compressor cycle.
See options on AmazonWe may earn a commission from qualifying purchases. It never changes the numbers we show. Disclosure.
Frequently asked questions
Which costs more to run, a shop vac or an air compressor?
At typical use and the U.S. average rate (17.99¢/kWh), an air compressor costs about $7 a year versus $3 for a shop vac. That's $4 more, or 2.5× as much.
How many watts do shop vac and air compressor use?
A shop vac typically draws 1,200 W (range 600–1,500 W). An air compressor draws 1,500 W (range 150–4,000 W). Watts alone don't decide cost. Hours of use, cycling and standby matter just as much.
Rates: EIA, 12 months ending 2026-07. Methodology.