How many watts does a mini fridge use per day?

Between about 200 and 850 watt-hours (0.2–0.85 kWh) per day depending on size: a 1.7 cu ft cube fridge sits near the bottom of that range, a 4.4 cu ft dorm-size unit near the top. Ambient temperature matters — the same fridge in a 90°F garage can use 30–50% more than in an air-conditioned room. Check the yellow EnergyGuide label for your model's annual kWh and divide by 365.

How many watts does a chest freezer use?

A chest freezer draws roughly 100–200 running watts and surges to 600–1,000 W at compressor start. Real daily use is about 0.75 kWh for an efficient 7 cu ft model (~280 kWh/year) and around 1.1–1.5 kWh for a 15 cu ft unit (~420 kWh/year). Chest freezers are more efficient than uprights of the same size because cold air stays inside when you open the lid.

Will a 300W power station run a mini fridge?

Yes — comfortably. A mini fridge runs at 50–100 W and surges to 200–400 W, which a 300 W continuous / 600 W surge unit like the ALLWEI 300W handles. With 256 Wh of capacity it keeps a cycling mini fridge cold for roughly 3–4 hours. For longer outages, a 512 Wh unit stretches that to ~7 hours and a 1 kWh unit to ~14 hours.

Does a mini fridge use a lot of electricity?

No. At the U.S. average of about $0.17 per kWh, a mini fridge costs roughly $15–50 per year to run — Consumer Reports puts an efficient 4.4 cu ft model at about $27 per year. That's a fraction of a full-size refrigerator's $90–95. The catch is per cubic foot: a mini fridge is less efficient than a full-size unit, so two mini fridges cost more than one mid-size fridge with the same total capacity.

How many amps does a mini fridge draw?

On a 120 V circuit, 50–100 running watts is just 0.4–0.8 amps, with the startup surge briefly pulling 2–4 amps. The nameplate usually says 1–2 A because it lists maximum draw. Any household outlet handles it — and it's why a mini fridge is one of the easiest appliances to back up with a small power station.

How Many Watts Does a Mini Fridge Use? (And Freezers, Too) — Real Numbers for 2026

Q: How many watts does a mini fridge use?

A mini fridge draws roughly 50–100 watts while its compressor is running, with a brief startup surge of 200–400 W. Because the compressor cycles on and off, actual consumption averages out much lower — ENERGY STAR data puts a typical 4.4 cu ft compact refrigerator at 233–310 kWh per year, which works out to about 0.6–0.85 kWh per day. Smaller 1.7 cu ft cube fridges use roughly 0.2–0.4 kWh per day.

TL;DR · 30 seconds

A mini fridge pulls 50–100 running watts and surges to 200–400 W when the compressor starts. Because it cycles, real use is only 0.2–0.85 kWh per day — about $15–50 a year in electricity. A chest freezer runs 100–200 W with a 600–1,000 W surge. Both are easy loads for even a small power station.

Size my power station → Skip to the watts chart ↓

The short answer

A mini fridge uses 50–100 watts while its compressor is running. Three numbers actually matter, and they’re different:

Running watts: 50–100 W. What the compressor draws while it’s on.
Surge watts: 200–400 W. The brief spike when the compressor motor starts — typically 3–4× running watts.
Daily energy: 0.2–0.85 kWh. The compressor only runs roughly a third of the time, so a “60-watt” fridge doesn’t use 60 W × 24 h. ENERGY STAR rates a typical 4.4 cu ft compact refrigerator at 233–310 kWh per year — about 0.6–0.85 kWh per day.

Mini fridge wattage by size

Running watts are steady-state draw; surge is the startup spike; daily use accounts for cycling. Annual figures cross-reference ENERGY STAR certified-product data.

Mini fridge type	Running W	Surge W	Daily use
Cube (1.7 cu ft)	45–65	150–250	0.2–0.4 kWh
Mid compact (3.2 cu ft)	55–85	200–350	0.4–0.6 kWh
Dorm size (4.4–4.5 cu ft)	60–100	250–400	0.6–0.85 kWh
Mini fridge with freezer box	70–100	250–400	0.7–1.0 kWh
12V camping fridge	30–45	60–90	0.2–0.4 kWh
Thermoelectric cooler (no compressor)	40–70 constant	none	1.0–1.7 kWh

Freezer wattage: chest vs upright

Freezers follow the same physics — modest running watts, a big motor surge, and a duty cycle that determines real consumption.

Freezer type	Running W	Surge W	Daily use
Compact chest (5 cu ft)	80–150	400–700	0.6–0.8 kWh
Chest (7 cu ft, ENERGY STAR)	100–150	500–800	~0.75 kWh
Chest (15 cu ft)	100–200	600–1,000	1.1–1.5 kWh
Upright, frost-free (15 cu ft)	150–250	700–1,100	1.5–2.0 kWh

Two patterns worth knowing. Chest beats upright at the same size: cold air is dense and stays in the box when you lift the lid, while an upright spills it out the door — and frost-free uprights add heater cycles on top. And efficiency isn’t linear with size: a 15 cu ft chest freezer (~420 kWh/year) uses only ~50% more energy than a 7 cu ft one (~280 kWh/year), not double, because bigger boxes have proportionally less surface area per cubic foot.

For wattage on everything else in the house — AC units, microwaves, well pumps — see the appliance wattage chart for 50+ devices. For full-size refrigerators specifically, we broke down refrigerator wattage, surge and daily cost here.

Find your exact number

Ranges are for planning; your model has a real figure. Two ways to get it:

The yellow EnergyGuide label lists estimated annual kWh. Divide by 365 for daily use. A 237 kWh/year dorm fridge ≈ 0.65 kWh/day ≈ 27 W average continuous draw.
Nameplate or plug-in meter. The spec plate inside the door lists volts × amps — that’s maximum draw, not average. A $20 plug-in energy monitor over 24 hours gives the truth, cycling included.

ENERGY STAR’s certified-product data puts a typical 4.4 cu ft compact refrigerator at 233–310 kWh per year — about $27 in electricity, per Consumer Reports’ running-cost testing.

What size power station do you need?

This is the good news: a mini fridge is one of the easiest appliances to back up. The 200–400 W surge fits within even small pure-sine inverters, and the cycling draw barely dents a battery.

Power station	Mini fridge	Chest freezer (7 cu ft)
88 Wh (MARBERO M82)	short bursts only	— (surge too high)
256 Wh (ALLWEI 300W)	~3–4 h	— (surge marginal)
512 Wh (Jackery Explorer 500 v2)	~7 h	~5–6 h
1,024 Wh (EcoFlow Delta 2)	~14 h	~10–12 h

Three sizing notes:

Match the surge, not the sticker. A 300 W continuous / 600 W surge inverter clears a mini fridge’s 200–400 W spike. A chest freezer’s 500–1,000 W surge needs a 1,000 W-surge-class unit — the Jackery Explorer 500 v2’s 1,000 W peak is the practical floor.
The fridge stays cold between cycles. During an outage, a closed mini fridge holds safe temps for hours unpowered. Even a small station that runs it intermittently stretches your food’s life far past the runtime table.
Don’t buy big for a small load. If the mini fridge is the whole mission, a compact LFP unit does it on clean pure-sine power without the 1 kWh price tag.

Run your own setup through the sizing calculator — it accounts for the surge headroom and inverter losses most people forget.

★ Editor's Pick · Best budget pick for running a mini fridge #1

ALLWEI ALLWEI-300W

ALLWEI

ALLWEI 300W (256Wh)

4.4 (2,203)

$149 USD · Free Prime shipping

Capacity 256Wh

AC Output 300W

Weight 6.4lb

Cycles 3,000

Check on Amazon →

+ Pros

· LFP chemistry at $149 — 3,000 cycles is rare this cheap; most budget rivals still ship Li-ion

· Pure sine wave makes it safe for a CPAP and laptops, not just phones

· AC+solar dual charging hits a full recharge in 2–2.5 hours — fast for the tier

· 6.4 lb and silent: genuinely usable indoors and in a backpack

− Cons

· 300W ceiling rules out microwaves, kettles, hair dryers and full-size fridges with high surge

· Only 1 AC outlet — fine for one appliance, tight if you want AC + a device on AC at once

· 256 Wh is modest: ~3–4 hours of a cycling mini-fridge, not an all-day backup

· Lesser-known brand vs Jackery/EcoFlow — smaller support footprint if something fails

What it costs to run

At the U.S. average of about $0.17 per kWh:

Cube fridge (1.7 cu ft): ~0.3 kWh/day → $15–20/year
Dorm fridge (4.4 cu ft): ~0.7 kWh/day → $40–50/year (an efficient ENERGY STAR model lands near Consumer Reports’ $27 figure)
Chest freezer (7 cu ft): ~0.75 kWh/day → ~$47/year
Chest freezer (15 cu ft): ~1.2 kWh/day → ~$72/year

The fine print: per cubic foot, a mini fridge is less efficient than a full-size unit. A 4.4 cu ft compact at ~270 kWh/year burns ~61 kWh per cubic foot; a 20 cu ft ENERGY STAR full-size at ~550 kWh/year burns ~27. Two mini fridges cost more to run than one mid-size refrigerator with the same total space. To convert any appliance’s watts into dollars yourself, see how to calculate watt-hours.

Bottom line

A mini fridge uses 50–100 running watts, surges to 200–400 W, and consumes 0.2–0.85 kWh per day — call it $15–50 a year. Chest freezers run 100–200 W with a heftier 600–1,000 W surge. Both are light loads: a compact pure-sine power station covers a mini fridge through a long outage, and a 512 Wh-class unit handles the freezer too. Check your exact models against the sizing calculator before you buy anything.