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Conversion Charts

What Wattage Is My Microwave Oven?

The manual that came with your oven should clearly indicate what wattage microwave oven you own. However, we have received a lot of inquiries from people who can't find their manual, so we are providing this method to help you determine the wattage of your oven.

Most recipes for microwave ovens are written for the 700-watt oven. If it takes 2 minutes and 30 seconds to boil a cup of room temperature water (approximately 75°F) in your microwave oven, there is no need to convert the cooking times. However, if it takes a different amount of time for a cup of water to boil in your microwave oven, you should convert cooking times to your wattage oven. For example, if you have a 1000-watt oven and a recipe for a 700-watt calls for you took cook 1 minute 30 seconds, you would use the 1000-Watt Chart at this site to determine that in your oven the approximate cooking time is 1 minute 03 seconds.

So, boil a cup of water and watch the time. Conversion charts already available at this site have a blue link to the Chart you need in the table below. If your oven wattage does not have a link to it, we will be happy to add a chart here for you. Just post your request at our Facebook Page and let us know for what wattage oven you need a chart. Your chart will be added to this site as soon as possible.

You may also come across recipes written for an oven wattage other than 700-watt, which you need to convert to your oven. We have received many Special Requests and included those charts below the 700-watt conversion charts. Please check that section, to see if we have already created the chart you need. If it is not there, please post your request at at our Facebook Page and we'll be happy to add your chart too. Be sure to mention both the wattage you are converting from and the wattage you need to convert to in order to expedite the process.

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Instructions: Find the amount of time it takes to boil one cup of water in your microwave oven in the first column, "Water Boils." The number next to it under "Oven Wattage" is a close approximation of what wattage oven you have.

Water
Boils

Oven
Wattage

05:50

300

05:23

325

05:00

350

04:40

375

04:22

400

04:07

425

03:53

450

03:41

475

03:30

500

03:20

525

03:11

550

03:03

575

02:55

600

02:48

625

02:42

650

02:36

675

02:30

700

02:25

725

Water
Boils

Oven
Wattage

02:20

750

02:15

775

02:11

800

02:07

825

02:04

850

02:00

875

01:57

900

01:54

925

01:51

950

01:48

975

01:45

01:42

1025

01:40

01:38

1075

01:35

01:33

1125

01:31

01:29

1175

Water
Boils

Oven
Wattage

01:27

01:26

1225

01:24

01:23

01:21

01:19

1325

01:18

01:16

1375

01:15

01:14

1425

01:12

01:11

1475

01:10

01:09

1525

01:08

01:07

1575

01:06

01:05

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Affiliate Disclaimer: We work to provide microwave cooking information and locate merchants who sell the products you are looking for. If you make a purchase from any of the merchants we endorse, we will earn a small commission at no additional cost to you. Thank you for your support!