LED mirror sized for an 800mm bathroom vanity

What Size LED Mirror Works Best for an 800mm Bathroom Vanity?

For an 800 mm-wide bathroom vanity, a 600 or 700 mm-wide mirror is a useful starting point. A centred 600 mm mirror leaves 100 mm each side; a 700 mm mirror leaves 50 mm. That gives the mirror a clear relationship with the furniture while leaving the final choice open to your wall space, lighting and basin position.

Measure the furniture and the usable wall

An 800 mm vanity describes the furniture width, not necessarily the basin width or the clear wall above it. Measure between shower screens, shelves, side walls and lights. A 700 mm mirror can work beautifully on an open wall and feel crowded in a narrower recess.

Check where you stand at the basin. If the basin is offset, the most useful position may be centred on the basin rather than the furniture. A paper outline lets you compare both arrangements before drilling or planning the cable exit.

Option 1: a 600 mm round mirror

60 cm HaloGlow round backlit mirror — £139 gives an 800 mm vanity a softer focal point and 100 mm of furniture width on each side when centred. Its backlight adds atmosphere, with dimming, three light colours and anti-fog for daily convenience.

Round backlit mirror suited to an 800 mm bathroom vanity
600 mm round mirror: 100 mm each side on an 800 mm vanity

A circle is a good choice if you want to soften strong tile lines or a rectangular basin. Its full width is at the centre, so check the reflection at your usual eye level. Use suitable face lighting as well if close grooming is a priority.

Option 2: a 600 × 800 mm rectangular mirror

60 × 80 cm frontlit and backlit mirror — £169 uses the same 600 mm width with a taller overall glass shape. It leaves the same side spacing while bringing both face-facing illumination and a wall glow to the vanity.

Rectangular double light bathroom mirror for an 800 mm vanity
600 mm wide × 800 mm high mirror with front and back lighting

The extra height is useful only if the wall allows it. Check the ceiling, tap height and position of any shelf above. Mark both the outside of the glass and where the illuminated areas will sit so the result feels balanced in your room.

Option 3: a 700 mm square mirror

70 × 70 cm square backlit mirror — £169 makes a fuller geometric statement, with 50 mm each side when centred over 800 mm furniture. Its square outline works well when you want a broad reflection without a very tall mirror.

Square backlit bathroom mirror with a clean geometric outline
700 mm square mirror: 50 mm each side on an 800 mm vanity

What about a mirror nearly as wide as the vanity?

A 760 mm-wide mirror would leave only 20 mm each side of an 800 mm vanity. That can create an intentional full-width look on an open wall, but it gives less visual breathing room and may be awkward beside fittings. A mirror wider than the basin is perfectly possible; the relevant comparison is the whole wall and furniture arrangement.

Avoid turning a proportion guideline into a rule. A comfortable reflection, clear controls and enough room around nearby objects matter more than hitting a fixed percentage. For two users of different heights, test the top and bottom of the reflection at both eye levels.

Choose the light as carefully as the width

Front lighting helps bring light towards the face. Backlighting creates a softer glow around the mirror. A dual-light design combines both. If the existing ceiling light leaves shadows, a larger backlit mirror alone may not address that problem as effectively as a suitably placed front-facing light.

A demister is useful in a shower room, while dimming helps one mirror suit different routines. Pick those functions around actual use rather than assuming the biggest mirror is the most practical option.

Check the fit before ordering

  1. Mark the 800 mm vanity centre and the basin centre.
  2. Compare a 600 mm and a 700 mm paper outline.
  3. Check height, taps, nearby lights and cleaning access.
  4. Choose the lighting effect and controls you will use.
  5. Plan mounting and the power connection with the exact product dimensions.

Use our bathroom mirror size calculator to organise the measurements, then compare LED bathroom mirror sizes. A well-proportioned mirror should look right from the doorway and feel easy to use at the basin.

Prices and the linked in-stock options were checked on 27 October 2026. Any checkout promotion is applied separately.

Enjoy free UK delivery, a 3-year warranty and free replacement if your mirror arrives damaged.

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