Vanity Light Size Calculator

Find the right vanity light width, mounting height, and lumen output for any bathroom. Works for single-bar fixtures above the mirror and side-mounted sconces — with CRI and colour temperature guidance for accurate grooming light.

Vanity type
🪞
Single sink vanity
One fixture or two sconces
🚿
Double sink vanity
Two fixtures or four sconces
🏠
Full wall / Hollywood
Strip or Hollywood style
Mounting position
Above mirror (bar fixture)
Single horizontal bar or row of bulbs mounted above the mirror. Most common style.
Side-mounted sconces
Two sconces flanking the mirror at eye level. Eliminates shadows on face. More flattering for grooming.
Measurement units
Inches
Centimetres
Your mirror and vanity dimensions
Measure the mirror frame width
Overall vanity width if no mirror measured
Typically 72-78″ for standard vanity height
For total lumen recommendation

Please enter mirror or vanity width.

Ideal fixture width
0
0
Mount height from floor
0
Above mirror top
0
Lumens needed
Front elevation — vanity lighting layout
Vanity lumen guide — by bathroom size
Bathroom sizeMin lumensIdeal lumens
Vanity type / mount
Mirror width
Ideal fixture width
Mount height (center of fixture)
Clearance above mirror
Minimum lumens
Recommended CRI / CCT
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The calculators and tools on LightingCalc.lighting are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. LightingCalc.lighting makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.