This online tool facilitates the conversion between absorbance and transmittance, two key measurements used in spectrophotometry to quantify the amount of light that passes through a substance. Absorbance represents the amount of light absorbed by a sample, while transmittance represents the amount of light that passes through it. For example, an absorbance value of 1.0 corresponds to a transmittance of 10%, meaning that 90% of the light has been absorbed. The relationship between these two metrics is logarithmic and mathematically defined.
The ability to readily switch between these two representations of light interaction offers significant advantages in various scientific fields. It simplifies data analysis, allows for easier comparison between different experiments, and aids in the determination of sample concentrations using the Beer-Lambert Law. Historically, this conversion required manual calculation using logarithmic tables or specialized slide rules. Digital tools streamline this process, enhancing both speed and accuracy in data interpretation.
