Under-cabinet lighting calculator

1
Build your kitchen layout
Clear all

Drag cabinet sections into the kitchen. Select a placed section to resize ↘ or rotate ↺. Sections with ⚡ get lighting — sink, range, fridge get no lighting strip.

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Base cabinet⚡ Lit
Sink baseNo light
Range/stoveNo light
Corner base⚡ Lit
Island⚡ Lit
Open shelf⚡ Lit
Fridge/freezeNo light
Micro/OTRNo light
Gap/breakNo light
Wall
Drag cabinet sections into the kitchen layout
Empty kitchen
Drag sections here from the palette
Strip lighting (⚡ lit sections)
No lighting (sink/range/fridge)
2
Fixture type & preferences
Fixture type
Strip output
Voltage & diffuser
Mounting position
Mounting position — cross-section
No kitchen drawn above? Enter total run length manually: ft total lit run
Lighting totals
Total lit run
Total lumens
Total watts
Task lighting (lux at counter)
lux
Backsplash effect
Power supply planning
A
Total current
W
Driver size (80% rule)
Power feeds needed
ft
Max run per feed
Fixture & installation guidance
Dot-free & uniformity
Colour temperature
Kitchen lighting layers
Design guidance only. Results are estimates based on standard formulas. Actual illumination varies with cabinet geometry, surface finishes, and installation quality. Voltage drop calculations assume 18AWG wire — verify with your electrician before purchase.
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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.