Check a typical recommended lux level for the space, then see the area-based lumen estimate and relevant Lumenloop product ranges.
Choose a space type to attach the latest lux calculation to your quotation request.
Use this lux level calculator result to request a quotation. The recommended lux level, room area and product direction are included when available.
This lux level calculator provides an early planning benchmark for offices, warehouses, retail areas, circulation spaces, plant rooms and other commercial interiors. The space type and room area produce a recommended lux target, total lumen demand and relevant Lumenloop luminaires.
The result is an early specification reference. Photometric files, glare, ceiling details, reflectance values and emergency lighting must still be considered for a final lighting design.
Lux measures illuminance, or how much light reaches a surface. The basic relationship is simple: lux equals lumens divided by area. A 50 m2 office targeting 500 lux therefore needs around 25,000 lumens before detailed utilisation and maintenance factors are applied.
The selected task establishes the illuminance benchmark. A corridor, meeting room, retail display and inspection area should not be treated as the same type of space.
Two schemes can both measure 500 lux and still feel completely different. Glare control, spacing, optical distribution, ceiling height, surface reflectance and the working plane all affect whether the space is comfortable and compliant.
For screen-based workplaces, controlled optics and low glare performance are often more important than simply increasing output. That is why office lighting levels should be checked alongside UGR, uniformity and luminaire positioning.
With the target lux level known, the required output can guide luminaire selection. Open-plan offices often suit linear luminaires or suspended systems, while circulation areas, retail spaces and compact rooms may use LED downlights, track lighting or wall-mounted luminaires.
The product selection in the calculator is a starting point for that discussion, not a substitute for final design validation.
A maintained illuminance target is set by the visual task rather than the fitting. Desk work, inspection benches, corridors, storage aisles, retail displays and plant rooms all need different maintained illuminance ranges.
For commercial projects, the recommended lux level should be checked with ceiling height, mounting method, emergency lighting, lighting controls and the final luminaire optics before it becomes part of the specification.
One lux is one lumen per square metre. Lumens describe luminous flux from the light source, while lux describes the amount of light arriving at the working plane. A lux to lumens calculator therefore uses room area as well as the target light level.
For a quick estimate, multiply the target lux by the room area to calculate the light required. The actual LED lighting layout then needs allowances for utilisation, maintenance, ceiling height and fixture spacing.
The calculation converts a recommended lux level and room area into the amount of light needed. It does not measure the completed room: a light meter records illuminance, while photometric data establishes the final light fixtures and number of fittings.
Office work, inspection, circulation and retail display use different illuminance targets.
One lux is one lumen per square metre, so floor area converts the target into total light required.
Optics, mounting height, spacing, maintenance and glare control shape the finished lighting scheme.
CIBSE recommended lighting levels and BS EN 12464-1 workplace lighting guidance are useful references for early planning. They help identify the likely illuminance range for a task; formal specifications also need the room geometry, visual task and applicable project standard.
For formal specification, the lux target should be checked against the room geometry, mounting height, controls strategy, emergency lighting layout and the relevant project standard.
If you already know the target lux level and want a deeper fitting estimate, use the Lighting Design Calculator. For output-led planning, use the Lumens Calculator. For workplace running costs and payback, use the Office Lighting Calculator.
For projects moving beyond benchmark guidance, Lumenloop can provide product information, circularity notes and technical files before quotation.
The calculator helps with early room-by-room planning, but it cannot judge glare, beam angle, emergency escape routes, rack shadowing or exact luminaire spacing. Those checks matter when a scheme moves from benchmark to specification.
Use the result to compare office lighting, warehouse and industrial lighting, retail lighting and emergency lighting requirements.
People often ask how many lumens per square metre are needed, how to calculate lux from a light fixture, or whether the same lighting calculator can be used for offices, warehouses and retail areas. Office, warehouse and retail spaces need different targets because they use light differently.
The estimator gives a recommended lux range and a lumen figure, then the lighting design calculator can be used for fitting count, spacing direction and early product comparison.
For example, an office desk area, warehouse aisle and retail display can all need different light intensity even when the room area looks similar. The lux calculator therefore treats illuminance, room use, luminaire output and the amount of light required as linked inputs rather than a single bulb brightness figure.
For an early room estimate, multiply the target illuminance in lux by the lit area in square metres. A 500 lux target across 50 m2 gives 25,000 lumens before allowances for optics, maintenance and room geometry.
General office lighting is commonly planned around 300-500 lux, depending on the task, screen use and visual comfort requirements. Detailed drawing or inspection work may need a higher target.
Lumens measure the total light output from a luminaire. Lux measures how much light reaches a surface. A high-lumen product can still deliver poor lux levels if the optics, spacing or mounting height are wrong.
CIBSE guidance is widely used for UK lighting design, but each project should be checked against the applicable standards, risk profile and client requirements. The figure is for early planning.
No. Lumens are the total light output from a light source, while lux is measured at the surface. The same 500-lumen light fixture produces different lux levels across different areas. A light meter records actual illuminance after installation.
Yes, but the luminaire output must be considered with beam angle, mounting height, spacing and room surfaces. This calculator provides an early target; a photometric layout establishes the fitting quantity and illuminance distribution.
Storage and distribution areas are often planned around 100-300 lux, with higher levels for packing, inspection, loading bays or safety-critical tasks. Racking height and aisle layout can change the final design significantly.
