When the packet says 900 W but your microwave is 700 W, get the adjusted cooking time instantly.
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About this tool
How it works
The converter preserves approximate energy by multiplying the listed time by the listed wattage, then dividing by your microwave wattage.
Example
A meal labelled 3:00 at 900 W needs approximately 3:51 at 700 W.
Private by default
The calculation or transformation happens in this browser. There is no account, and the values you enter are not sent to NaughtyBear Labs.
How to use Microwave Time
- Enter the cooking time and wattage printed on the food package.
- Enter the wattage shown on your own microwave.
- Use the converted time as a starting point, then check the food and add short intervals if needed.
Common questions
- How is microwave time converted?
- Approximate energy is preserved: package time × package wattage ÷ your microwave wattage.
- Does the result guarantee food is safely cooked?
- No. Microwaves and food shapes vary. Follow package safety instructions, stir when directed, and verify that food is thoroughly heated.