Specific Growth Rate Calculator

Specific Growth Rate Calculator calculator can be used to determine the growth rate of microorganisms, cell cultures, or other populations by measuring the increase in biomass over time.

Input Parameters

Calculation Results

Calculation Formula

SGR = ln(Final Biomass / Initial Biomass) / Time

Where:
SGR = Specific Growth Rate (1/hour)
Final Biomass = Biomass at the end of the period (mg/mL)
Initial Biomass = Biomass at the start of the period (mg/mL)
Time = Duration of the period (hours)

Result

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Specific Growth Rate Calculator Calculator Usage Guide

Learn how to use the Specific Growth Rate Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the initial biomass in mg/mL.
  2. Enter the final biomass in mg/mL.
  3. Enter the time in hours during which the growth was measured.
  4. Click the "Calculate" button to compute the specific growth rate.
  5. The result will be displayed in 1/hour.

Understanding Specific Growth Rate

The Specific Growth Rate (SGR) is a measure of the rate at which a population grows. It is defined as the natural logarithm of the ratio of final biomass to initial biomass divided by the time taken. This is a common metric used in microbiology and biotechnology to describe the growth rate of microorganisms.

Example

For instance, if the initial biomass is 10 mg/mL, the final biomass is 50 mg/mL, and the time taken is 4 hours, the SGR would be calculated as:

SGR = ln(50 / 10) / 4 = ln(5) / 4 ≈ 0.4055 1/hour