Optical Density to Transmission Percentage Calculator

Convert Between Optical Density (OD) and Transmission Percentage

This powerful calculator allows you to easily convert between Optical Density (OD) and Transmission Percentage values - essential measurements in optical and spectroscopic applications.

How to Use the Calculator

Simply select the appropriate tab based on your conversion needs:

  • OD to Transmission: Enter your Optical Density value to get the corresponding transmission percentage
  • Transmission to OD: Enter your transmission percentage to calculate the optical density

The calculator provides instant, accurate conversions using the standard relationship between these optical measurements.

Understanding the Relationship

Optical Density and Transmission Percentage are inversely related measurements commonly used in spectrophotometry, filter characterization, and optical analysis. This tool makes it easy to switch between these units for your calculations and specifications.

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