Microwave Wattage Converter
Recipes and food packages often assume a different microwave power than yours. Enter the time and both wattages, and this gives the time for your microwave.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
Time goes up when power goes down. The new time is the original time multiplied by the recipe's wattage, then divided by your microwave's wattage.
This is a straight-line estimate. Food heats unevenly in a microwave, so check it partway through and stir or turn it as the package says.
Worked example
A recipe written for 1,000 watts that says 3 min becomes 4 min 17 s in a 700 watt microwave.
Questions
Where do I find my wattage?
Look for the cooking power on the label inside the door or in the manual. Most labels list an input and an output figure, and the output is the lower of the two.
Does the food need stirring?
Yes, when the recipe says so. Stirring spreads the heat, so the time estimate stays closer to right.
Why does lower wattage take longer?
Less power heats the food more slowly, so it needs more time to reach the same temperature.
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