Illuminance Converter

What is Illuminance Converter?

Illuminance Converter is a free online tool that converts between different light measurement units. Convert lux to foot-candles, lumens per square meter to phot, and work with any illuminance measurement.

Why Would You Need to Convert Illuminance?

• Lighting design: Ensure proper light levels for spaces
• Photography: Calculate exposure settings
• Workplace safety: Meet illumination standards
• Agriculture: Monitor light for plant growth
• Display calibration: Set screen brightness properly

How to Convert Illuminance - Step by Step

1. Enter the value: Type the illuminance amount
2. Select source unit: Choose lux, foot-candles, etc.
3. Select target unit: Choose the unit to convert to
4. Get result: See the converted value instantly

Key Features

• Multiple units: Lux, foot-candles, phot, and more
• Instant conversion: Results appear as you type
• Accurate calculations: Precise for lighting design
• Professional use: Meets industry standards
• Free to use: No registration required

Tips for Best Results

• 1 foot-candle ≈ 10.764 lux
• Office lighting typically requires 300-500 lux
• Outdoor daylight can reach 100,000 lux

Frequently Asked Questions

What is lux?

Lux is the SI unit of illuminance, measuring lumens per square meter. It indicates how much light falls on a surface.

What is a foot-candle?

A foot-candle measures illuminance in imperial units, equal to one lumen per square foot.

How much lux do I need for reading?

Reading typically requires 300-500 lux for comfortable visibility without eye strain.