For a 1000 mm bathroom vanity, an 800–1000 mm-wide mirror is a useful starting range. An 800 mm mirror leaves 100 mm at either side when centred; a 900 mm mirror leaves 50 mm; a 1000 mm mirror aligns with the vanity width. Choose the margin that works with the actual wall, not just the furniture measurement.
800 mm: a lighter composition
The 80 × 60 cm gold-framed frontlit mirror leaves a visible border above a one-metre vanity. Its gold frame adds warmth, while dimming, three light colours and anti-fog make it practical for daily grooming.

This width is useful when the vanity sits near a wall cupboard, shower screen or side wall. Check the height as well: a wide but shallow reflection and a taller mirror create different compositions.
900 mm: a generous fit with a small margin
The 90 × 70 cm illuminated rectangular mirror sits between a compact and a full-width look. It includes three light colours and anti-fog. At 90 cm wide, it leaves a modest border above a 100 cm vanity without filling the entire width.

1000 mm: a fitted full-width effect
For a clean wall, compare the 100 × 70 cm version. Its outline matches a one-metre vanity, so accurate centring and clearance around adjacent fittings become especially important.
If you prefer a curved focal point, the 90 cm round dual-light mirror offers a different look. It softens a rectangular vanity and combines front lighting with a rear glow.

Check reflection, lighting and reach
- Mark the proposed outline above the basin, including height.
- Stand at the vanity to check the reflection and controls.
- Leave clearance above tall taps and around opening cupboards.
- Choose face lighting for grooming and a rear glow for atmosphere.
- Plan secure wall support and power with the installer.
The mirror size calculator is useful for comparing proportions. Treat its result as a starting point, then check the actual wall and the users’ comfortable viewing height.
Find the proportion you prefer
Browse rectangular LED mirrors for a straight-sided look, or compare larger mirrors when the whole wall is being planned as a feature. At LED Mirror World, choose size first, then the finish and lighting that make the vanity feel complete.
Related mirrors and planning guides
- backlit mirrors for ambient lighting
- LED Mirror World UK homepage
- round LED designs in different diameters
- LED mirror sizing for an 800mm vanity
- one large LED mirror or two separate mirrors
- the best LED mirror shapes for narrow UK bathrooms
- when a double-lit LED mirror makes sense
- Round LED Mirrors for Complementary Lighting
- Best Mirror Shapes for Different Bathroom Styles
- LED Mirror Ideas for Ensuite Bathrooms
- What Size Mirror for Small Bathroom
- Rectangle LED Mirrors for Functional Bathrooms
- How LED Mirrors Affect Perceived Bathroom Size (And How to Use That to Your Advantage)