How to Use This Calculator
- Enter the absorbance value in the input field. Absorbance is a measure of how much light is absorbed by a substance.
- Click the "Calculate" button to convert the absorbance to transmittance percentage.
- The result will be displayed in the Transmittance field as a percentage.
- Click "Reset" to clear all input fields and results.
Understanding the Formula
The relationship between absorbance (A) and transmittance (T) is exponential and is calculated using the formula:
T = 10-A × 100%
Where:
- T = Transmittance (expressed as a percentage)
- A = Absorbance
For example, if the absorbance is 0.5, the transmittance would be 10-0.5 × 100% ≈ 31.62%.
Applications
This calculator is useful in various scientific fields including:
- Spectrophotometry for measuring substance concentration
- Chemical analysis in laboratories
- Biochemical assays
- Environmental monitoring
Important Notes
Remember that:
- Absorbance values can be negative, zero, or positive.
- As absorbance increases, transmittance decreases.
- Absorbance of 0 corresponds to 100% transmittance (no light absorbed).
- Absorbance of 1 corresponds to 10% transmittance.