What Size Round Bathroom Mirror Should I Choose?

When it comes to selecting a round bathroom mirror, size is more important than you might think. The right mirror should complement your bathroom vanity, enhance functionality, and create visual balance. Go too big, and it can overpower the space; go too small, and it might look awkward or out of place. Round mirrors, with their soft edges and versatile design, can suit nearly any bathroom … but only if you choose the right size.

Common Round Bathroom Mirror Sizes

At Buildmat, our round mirrors come in two common sizes:

• 700mm round mirrors: Ideal for compact bathrooms, powder rooms, or smaller vanities.

• 900mm round mirrors: Perfect for standard or larger vanities, offering more reflection space without overwhelming the wall.

Both sizes are available in a range of finishes, including matte black, brushed gold, and frameless options, allowing you to match your mirror to your overall bathroom design.

How to Choose the Right Round Mirror Size for Your Vanity

A good rule of thumb is to choose a mirror that’s about two-thirds to three-quarters the width of your vanity. This creates visual balance without making the space feel cramped.

• For a 600mm vanity: A 700mm mirror works perfectly, providing enough reflection without overwhelming the sink area.

• For a 900mm vanity: Opt for a 900mm mirror to match the scale of your vanity and create a cohesive look.

• For double vanities (1200mm or wider): You can either choose a large round mirror (900mm) centered between sinks or use two 700mm mirrors over each basin for symmetry.

This 900mm round mirror perfectly complements the wall space and vanity . SHOP NOW

1. Consider Your Ceiling Height and Wall Space

Height is just as important as width. Round mirrors naturally draw the eye upward, so consider how much wall space you have between your vanity and lighting fixtures.

• Low ceilings: Go for a 700mm mirror to avoid making the space feel cramped.

• Higher ceilings: A 900mm round mirror like the Windsor Round LED Mirror helps fill vertical space and creates an elegant focal point.
  

2. Factor in Lighting and Functionality

Mirrors aren’t just decorative—they serve a practical purpose too. Consider how you’ll use your bathroom mirror day-to-day:

• Need better lighting for grooming? Opt for a round LED mirror that provides soft, even illumination.

• Focusing on aesthetics? A larger mirror can create a bold statement, while a smaller one adds subtle style.

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If you’re installing a mirror above a sink, make sure there’s at least 100-200mm of space between the bottom of the mirror and the top of the vanity to prevent splashes and keep things practical.

Matching Your Mirror to Your Bathroom Style

Your mirror size should complement your bathroom’s overall design:

• Minimalist or contemporary spaces: Larger round mirrors (900mm) in a frameless or matte black finish add modern elegance.

• Warm or luxurious designs: Opt for a brushed gold or brushed bronze finish to bring warmth and sophistication.

• Compact bathrooms: Smaller mirrors (700mm) help maintain an open feel while still offering enough reflection space.

Consider your bathroom’s overall look & feel when choosing a round mirror. SHOP NOW!

When in Doubt, Bigger Is (Usually) Better

If you’re torn between two sizes, it’s often better to go with the larger option, especially in smaller bathrooms where a big mirror can make the space feel more open and bright. Just be sure it doesn’t extend beyond the width of your vanity.

Elevate Your Bathroom With the Right Round Mirror 

Choosing the right size round bathroom mirror is about finding the perfect balance between function and style. Whether you’re working with a compact powder room or a spacious master ensuite, our collection of round mirrors has something to suit every space.

Looking to enhance your bathroom even further? Pair your mirror with bathroom accessories or complement it with matching bathroom tapware for a cohesive, stylish finish.