Microwave Dimensions: A Complete Size Guide

Looking for a new microwave but not sure about sizing? Whether you're replacing an existing appliance or buying your first microwave, understanding microwave dimensions is crucial.

In this Hoover guide, we’re breaking down everything you need to know about microwave sizes so you can find the perfect fit for your kitchen.

Understanding microwave sizes

Microwaves come in various sizes to suit different needs and spaces. From compact models perfect for small kitchens to larger family-sized options, there's a microwave to fit every space. When considering a new microwave, you'll need to think about both external dimensions for fitting and internal capacity for cooking.

When we talk about microwave oven dimensions, we're looking at three key measurements: external width, depth (front to back), and height.

For built-in microwaves, you'll also need to consider the cabinet opening dimensions, ventilation space requirements, and power cord placement. Understanding these measurements is essential for ensuring your new appliance will fit perfectly in your kitchen.

Small microwave dimensions

Small microwave measurements typically range from 40-45cm in width, 30-35cm in depth, and 25-30cm in height. These compact models are perfect for small households, student accommodation, office kitchens, or anywhere counter space is limited. Despite their smaller size, modern compact microwaves still offer impressive functionality and cooking performance.

Standard size microwave dimensions

A standard size microwave usually measures between 50-55cm wide, 40-45cm deep, and 30-35cm high. These measurements offer a good balance between counter space and cooking capacity, making them suitable for most household needs. They provide enough space for standard dinner plates and cooking dishes while remaining manageable on your worktop.

Built-in microwave dimensions

Built-in microwaves need precise measurements to ensure a proper fit. Standard dimensions for built-in models are typically:

  • Width: 50-60cm
  • Depth: 50-55cm
  • Height: 38-45cm

Always check the specific installation requirements for your chosen model, as ventilation needs can affect the overall space required.

How to measure for a new microwave

Measuring for a new microwave involves more than just checking basic dimensions. Start by measuring the width, depth, and height of your available space. Remember to allow at least 5cm ventilation space at the sides and 10-15cm clearance above. The location of your power socket is also crucial – ensure your chosen spot has easy access to power.

If you're fitting a built-in model, you'll need to be even more precise. Measure your cabinet opening carefully and check whether you'll need a trim kit. Consider how the door will open and ensure you have enough clearance for comfortable access.

Choosing the right size microwave

Your choice of microwave size should reflect both your space constraints and your cooking needs. Consider your kitchen layout, including available counter or cabinet space and ventilation requirements. Think about your typical cooking habits, too – do you usually heat single portions, or do you need space for family-sized dishes?

Kitchen layout 

Consider your kitchen's workflow and where you'll be using the microwave most frequently. Place it in an easily accessible spot that doesn't interrupt your cooking flow, and ensure there's enough space for the door to open fully without blocking pathways or hitting other appliances.

Counter space 

Measure your available counter space carefully, remembering that deeper counters offer more flexibility. If counter space is limited, consider mounting options or utilising a kitchen cart specifically for your microwave to maximise the workspace.

Usage patterns 

Think about how you typically use your microwave. If you regularly heat large family-sized dishes, a larger capacity model is worth the extra space. For single portions or basic reheating, a compact model might be more practical.

Power outlet placement 

Check the location of your electrical outlets in relation to your intended microwave placement. Ensure the cord will reach without requiring an extension lead, and consider whether you'll need an electrician to install a new outlet for built-in models.

Storage needs 

Consider what you'll be storing in and around your microwave. If you keep microwave-specific cookware or commonly used items nearby, ensure there's enough space for these accessories while maintaining the required ventilation clearance.

A guide to internal microwave capacity 

Internal capacity typically correlates with external dimensions, and understanding these measurements can help you choose the right size for your needs. Small microwaves usually offer 15-20 litres of capacity, while medium models range from 20-25 litres. Large microwaves provide 25-32 litres of space, and extra-large models offer 32+ litres, perfect for family cooking.

Finding your perfect microwave

At Hoover, we offer microwaves in various sizes to suit different needs and spaces. From compact models ideal for smaller kitchens to larger options perfect for family cooking, each microwave comes with detailed dimensions to help you make the right choice.

When choosing your microwave, always check the specific measurements of your chosen model against your available space. Remember that while these standard dimensions provide a helpful guide, individual models may vary slightly. Take time to review the detailed specifications of any model you're considering to ensure it will fit perfectly in your kitchen.

Ready to find your perfect microwave? Browse our range of microwaves at Hoover, each listing detailed dimensions and specifications to help you make an informed choice.