700 Watt Microwave vs 900 Watt

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Have you ever considered the wattage of your microwave and how it influences your cooking experience?

The kitchen has always been our culinary battlefield and the microwave oven is one of the most cherished secret weapons.

This secret weapon is powered by wattage and in this guide, we will be exploring the 700 watt microwave vs 900 watt.

Many believe that microwave wattage is the horsepower behind all the cooking endeavors from reheating leftovers to whipping up quick meals on busy weeknights but does the extra power of a 900-watt microwave truly revolutionize your kitchen game, or is the 700-watt model more than capable of holding its ground?

This we want to find out so you can make the right decision on the best microwave wattage that will suit your kitchen needs and budget

Prepare to be surprised as we embark on this journey of discovery, where even the smallest wattage can make a world of difference in your cooking adventures.


To build the groundwork for the comparison of the 700 and 900 watt microwave ovens, it is good to first understand microwave wattage and why it is significant.

A Microwave watt or wattage is simply the amount of power a microwave oven gives out when it is used for a particular task like cooking or reheating and this power is measured in watts (W).

We can also say that microwave wattage is the power output of a microwave oven.

Toshiba 1200 Watt Microwave Oven

Studies and customer usage have demonstrated that using a higher microwave wattage results in faster food heating.

Take for instance; a 1200-watt microwave will generally cook food quicker than a 700-watt model.

Higher wattage equals more microwave energy to excite the food molecules and generate heat.

I recall my mother preparing a large casserole in our 600-watt microwave oven, but it took longer, and if we weren’t patient and careful, the casserole would end up uneven.

1100 Microwave wattage Toshiba Oven

This is when I learned that appropriate wattage/power was essential when preparing certain dishes.

I am not saying this to diminish the power of a 700 watt microwave oven or the usefulness of an 800-watt microwave oven, but you must pay attention to the wattage guide, especially during cook times.

High wattage can also cause problems if you aren’t careful.

For example, if a recipe calls for 700 watts but you have an 1100 watts microwave oven, did you know that if you don’t use caution during the cooking time, your food may become overheated or dried out due to the power of the microwave wattage?

Now that you understand why this is significant, let’s move on to establish the difference between the 900-watt microwave oven and the 700-watt microwave oven.


700 Watt Microwave vs 900 Watt

Here are some of the main differences between a 700-watt microwave and a 900-watt microwave:

A 900-watt microwave has higher cooking power, meaning it can heat and cook food faster than a 700-watt model.

A 900-watt microwaves tend to have larger capacity interiors that can accommodate larger dishes than the 700 watts and this allows for cooking more food at once.

A 900-watt microwave capacity may start from 0.9 cubic feet capacity or more while 700 watts may have 0.7 cubic feet capacity or more.

A 900-watt microwave may cook faster, but it also uses more electricity during operation. So there is some increased energy usage that goes along with the extra power.

More powerful 900-watt models often come with more cooking modes (defrost, sensor reheat, etc.), more power settings, and more advanced features like inverter technology for more consistent heating than 700 watts.

Finally, in terms of price, the 700-watt microwave is more affordable than the 900 watts but some 700-watt microwave brands are expensive more than the 900-watt microwave.


Choosing between a 700 and a 900-watt microwave depends on your cooking needs and preferences.

900 Watts Space Saver Microwave Oven with 10 Power Levels

A 900-watt microwave generally cooks food faster and more evenly than a 700-watt microwave.

It’s suitable for most standard microwave cooking tasks and can handle a wider variety of foods.

However, a 700-watt microwave might be sufficient if you mainly use it for simple tasks like reheating leftovers or making popcorn.

It’s also usually more budget-friendly and consumes slightly less energy.

Consider factors like your typical cooking habits, the types of food you prepare, and your budget when making your decision.

If you frequently cook larger portions or need faster cooking times, the 900-watt microwave might be the better choice.


Cooking times refers to the amount of time it will take for a certain microwave wattage model to prepare your food.

Since a 700-watt microwave is what we term medium powered, which means it is more powerful than the 500 – 600-watt microwave, the 800 watts is more powerful than the 700, and the 900 watts is more powerful than the 700-watt model.

Therefore, as a general rule, we can use this as a guide for 700-watt microwave cooking times:

  1. Heating or boiling a cup of liquid might take at least 1 – 2 minutes.
  2. Cooking a baked potato might take 5-8 minutes.
  3. Cooking frozen vegetables takes about 5 minutes.
  4. Cooking a portion of casserole or soup takes 2-5 minutes.
  5. Heating a plate of leftovers takes about 3 minutes.
  6. Popping popcorn takes about 3-4 minutes.

Don’t forget to experiment with different cooking times for the food you’re cooking to fit the brand of your 700-watt microwave.

Second, pay attention to how hot the meal becomes at various cooking intervals, as each recipe will require a different cooking time.


A 900-watt microwave will use a maximum of 900 watts of power when operated on high settings but may use less depending on the specific mode and cooking time.

How much power does a 900 watt microwave use

When heating foods for a minute or more on a high setting, it will draw close to the full 900 watts.

So for a 900-watt microwave, heating a meal for 5 minutes would use around 4,500 watt-minutes (900 watts * 5 minutes) of energy and when the microwave oven is idle, it uses very little power compared to when it is in full swing.

Finally, the actual amount of power a microwave uses varies from moment to moment based on the power level set and what is being heated inside.


Microwave conversion has to do with accurate timing for your cooking or recipe.

Let’s say you want to prepare a recipe that specifies that you use an 800-watt microwave but you have a 1000-watt microwave, you would have to adjust the cooking time.

To do this conversion, you can use the simple formula below:

Adjusted Cooking Time = Original Cooking Time x Original Power / New Power

For example, if your original recipe calls for cooking something in an 800-watt microwave for 5 minutes. To adjust it for a 1000-watt microwave do this:

Adjusted Cooking Time = 5 x 800 / 1000

Adjusted Cooking Time = 4000 / 1000

Adjusted Cooking Time = 4 minutes

Therefore, in a 1000-watt microwave, you would cook the food item for 4 minutes instead of 5.

Feel free to experiment until you get the best result.


To convert from a 1200-watt microwave to a 900-watt microwave, you’ll likely need to adjust cooking times.

As a general rule, you can increase the cooking time by about 25% when using a lower-wattage microwave.

So, if a recipe calls for cooking something for 4 minutes in a 1200-watt microwave, you might need to increase it to about 5 or 6 minutes and some seconds in a 900-watt microwave.

For example, if a recipe will take 4:40 minutes in a 1200-watt microwave, in a 900-watt microwave, the time might be 06:00 or 06:13.

It’s always a good idea to test and adjust as needed based on your specific microwave and the food you’re cooking.


To convert cooking times from a 900-watt microwave to a 1000-watt microwave, you’ll likely need to decrease the cooking time.

You can reduce the cooking time by about 10% when using a higher-wattage microwave.

So, if a recipe calls for cooking something for 5 minutes in a 900-watt microwave, you might decrease it to about 4 minutes and 30 seconds in a 1000-watt microwave.

Again, it’s a good idea to test and adjust based on your specific microwave and the food you’re cooking.

To learn more about the 900 and 1000-watt microwaves, please check the comparison between 900-watt and the 1000-watt microwave oven.


Here’s an estimated guideline for converting cooking times from a 900-watt microwave to other wattages:

600 watts: Multiply the cooking time by 1.5.

700 watts: Multiply the cooking time by 1.3.

800 watts: Multiply the cooking time by 1.1.

1000 watts: Divide the cooking time by 1.1.

1100 watts: Divide the cooking time by 1.2.

1200 watts: Divide the cooking time by 1.3.

Remember, these are approximate conversions and may vary based on the specific food being cooked and the microwave itself.

Adjustments might be needed based on your observations.

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