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· 6 in stock · prices checked Oct 17, 2026, 6:34 AM ET
Cheapest power inverter per watt
Price ÷ the largest wattage in the product name (usually continuous output). Check surge rating and pure-sine-wave output on the brand page before running sensitive electronics.
The ranking lowest cost per watt first
Brand-store buttons go straight to the brand's own page, with no affiliate tag. Rankings are pure math.
| Rank | Product | $ / watt | Watts (product name) | Price today | vs. last week |
|---|---|---|---|---|---|
| #1 | 2000W 24V Pure Sine Wave Inverter Renogy In stock | $0.170 | 2,000 | $339.99 | history building |
| #2 | 3500W 48V Pure Sine Wave Solar Inverter Charger Renogy In stock | $0.171 | 3,500 | $599.99 | history building |
| #3 | 1000W 12V Pure Sine Wave Inverter Renogy In stock | $0.176 | 1,000 | $175.99 | history building |
| #4 | 2000W 12V Pure Sine Wave Inverter with UPS Transfer Switch and Built-in Bluetooth Renogy In stock | $0.182 | 2,000 | $364.99 | history building |
| #5 | 700W 12V Pure Sine Wave Inverter Renogy In stock | $0.214 | 700 | $149.99 | history building |
| #6 | 1000W 12V Pure Sine Wave Inverter with UPS Transfer Switch and Built-in Bluetooth Renogy In stock | $0.270 | 1,000 | $269.99 | history building |
Price history started Oct 17, 2026; week-over-week changes appear as it builds. Prices checked Oct 17, 2026, 6:34 AM ET at each brand's own store. Tax and shipping not included.
Specs marked "product name" are read from the brand's own product title. Products sold in several sizes at different prices are left out of per-unit math so the spec matches the price.
Sold out today (7)
- Renogy Refurbished 3000W 12V Pure Sine Wave Inverter, last price $299.99
- Renogy Refurbished 2000W 12V Pure Sine Wave Inverter, last price $219.00
- Renogy Refurbished 48V 3500W Solar Inverter Charger, last price $399.99
- Renogy Refurbished 3000W 12V Pure Sine Wave Inverter Charger w/ LCD Display, last price $499.99
- Renogy Refurbished 1000W 12V Pure Sine Wave Inverter with Power Saving Mode (New Edition), last price $179.99
- Renogy Open Box 3000W 12V Pure Sine Wave Inverter Charger w/ LCD Display, last price $593.99
- Renogy 2000W 12V Pure Sine Wave Inverter Charger w/ LCD Display, last price $595.99
Prepared, not scared
Cheapest isn't always best: check what each product includes on the brand page, and buy for the household you actually have. The Kit Calculator works out how much food and water that is.
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Questions people ask
What is the cheapest power inverters right now?
At today's prices: Renogy 2000W 24V Pure Sine Wave Inverter at $0.170 per watt ($339.99). This page updates every day.
How often is this ranking updated?
Daily. We check each brand store once a day and rebuild this page; the last check was Oct 17, 2026, 6:34 AM ET.
Why isn't my favorite brand listed?
We only collect prices from stores whose terms allow automated price checks. Brands that forbid it, such as EcoFlow, Jackery and Sawyer, are listed on our methods page.