Lighting Calculators
Make smarter lighting choices with our free to use lighting calculators.
Our lighting calculators help you understand your energy use, cut costs, and reduce your carbon footprint – all with a few simple clicks.
Smarter lighting starts with better data
Lighting calculators help you make confident, informed choices before committing to a design or upgrade. Whether you’re checking lux levels, comparing LED savings, or verifying compliance for emergency lighting, these free online tools make the process simple and accurate.
Use the lighting calculators below to:
Work out lux levels and light output for your space
Estimate energy savings and payback times from switching to LED
Compare colour temperature and RAL finishes for design consistency
Check CIBSE-recommended lighting levels for offices, warehouses, and public areas
Verify emergency lighting coverage and testing requirements
Every calculator has been created by the team at Lumenloop, a UK lighting manufacturer specialising in commercial, industrial, and architectural LED systems. They’re designed to give specifiers, engineers, and facilities managers the same kind of insights used in professional lighting design software — but without the complexity.
By combining live lighting data, CIBSE guidance, and industry benchmarks, these tools make it easier to choose fittings, plan installations, and justify investment in energy-efficient lighting. Whether you’re fitting out an office, upgrading a warehouse, or refining a lighting layout, our calculators help you make data-driven, sustainable decisions.
Start exploring the tools above to calculate, compare, and optimise every aspect of your lighting project — from lux and lumens to ROI and carbon savings.
