Color Temperature Meter+

Instantly measure any light's color temperature in Kelvin. For photographers, filmmakers & lighting pros — calibrate with white paper for studio accuracy.

Measure the color temperature of any light source in Kelvin using your iPhone camera. Color Temperature Meter+ uses the McCamy formula to deliver accurate readings for photographers, videographers, and lighting designers.

REAL-TIME KELVIN DISPLAY Point your camera at any light source and get an instant color temperature reading in Kelvin. Watch the value update live as you move through different lighting environments.

SPECTRUM BAR A beautiful gradient bar shows where your current reading falls on the color temperature spectrum, from warm candlelight to cool daylight.

LIGHT TYPE CLASSIFICATION The app automatically identifies your light source — tungsten, halogen, fluorescent, LED, daylight, overcast, and more.

WHITE BALANCE SUGGESTIONS Get camera-specific white balance recommendations for Sony, Canon, and Fuji systems. Set your camera's WB with confidence.

FREEZE MODE Tap to freeze the current reading. Compare multiple light sources without losing your measurement.

MIRED DISPLAY Switch between Kelvin and Mired (MicroReciprocal Degrees) for precise color correction filter calculations.

HISTORY Review past measurements with timestamps. Compare lighting conditions across different locations and times.

Essential for photographers matching ambient light, videographers ensuring color consistency across scenes, and lighting designers creating the perfect atmosphere.