Photosynthesis Rate Calculator

From O₂ Evolution

Calculate photosynthesis rate from oxygen produced

O₂ Produced (mL or µmol)

Time (minutes)

Leaf Area (cm²)

Dark Respiration Rate (same unit/min/cm²)

From CO₂ Uptake

Calculate photosynthesis rate from CO₂ assimilation

CO₂ Absorbed (µmol)

Time (seconds)

Leaf Area (m²)

Formula

Net photosynthesis rate = O₂ produced / (time × leaf area). Gross = Net + Respiration. 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.

Frequently Asked Questions

What is net vs gross photosynthesis?

Gross photosynthesis is the total amount of carbon fixed or O₂ produced. Net photosynthesis = Gross photosynthesis − Respiration. Net photosynthesis is what we actually measure, since respiration occurs simultaneously.

What factors affect photosynthesis rate?

Key factors include light intensity, CO₂ concentration, temperature, water availability, and leaf area. The light compensation point is where photosynthesis equals respiration (net = 0).

What is the overall equation for photosynthesis?

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂. Six molecules of carbon dioxide and water produce one glucose and six oxygen molecules, using light energy.

You may also need

Respiration Rate Calculator

Free respiration rate calculator. Biology and environmental science calculator.

Science

Beer-Lambert Law (Biology) Calculator

Free Beer-Lambert law calculator for biology. Calculate absorbance, concentration, or optical density for biological samples and growth measurements.

Science

Population Growth Calculator

Free population growth calculator. Model exponential and logistic population growth with growth rate, doubling time, and carrying capacity.

Science