Lighting

Kitchen Lighting Calculator

Estimate ambient plus worktop lighting for a kitchen.

Free interactive tool

Enter your details

m
lux
lm/m
Method & guidance

How the Kitchen Lighting Calculator works

Floor area receives ambient lux while counter length receives dedicated task lumens.

How to use this tool

  1. Collect accurate values for kitchen area, worktop length, ambient target.
  2. Enter measurements in the displayed units and select the choices that match this project.
  3. Select Calculate / Generate, then compare the outputs with the stated Kitchen Lighting Calculator method.
  4. Apply the result only after checking product specifications and real site conditions.

Example calculation or use case

For a worked Kitchen Lighting Calculator example, use Kitchen area = 18 m², Worktop length = 4 m, Ambient target = 250 lux, Task lumens per metre = 500 lm/m. The tool then applies this method: Floor area receives ambient lux while counter length receives dedicated task lumens.

Frequently Asked Questions

What information does the Kitchen Lighting Calculator use?

It uses the measurements and choices shown in the form. Floor area receives ambient lux while counter length receives dedicated task lumens.

How accurate is the Kitchen Lighting Calculator result?

The calculation is mathematically consistent with the stated assumptions. Place task light in front of the user so upper cabinets do not cast shadows. Real products, site conditions, and supplier specifications can still change the final decision.

Should I include an allowance?

Use the result as a planning baseline and keep a sensible reserve for site variation, delivery, or fitting.

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