Skip to content

Plant Watering Calculator

Everyday life
0.0(0)

Calculates the approximate amount of water and frequency needed for your plants based on their type, pot size, and environmental conditions.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Plant Type, Pot Diameter, Sun Exposure, and Average Temperature in the units shown.

Step 2

Read Temperature Factor, Watering Frequency, Sun Exposure Factor, Plant Type Factor, Base Water Amount, and Water Amount in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Small Succulent

Plant Type: Succulent/Cactus; Pot Diameter: 4 inches; Sun Exposure: Medium; Average Temperature: 70 °F

Temperature Factor: 1; Watering Frequency: Every 10-14 days; Sun Exposure Factor: 1; Plant Type Factor: 0.5; Base Water Amount: 0.8 cups; Water Amount: 0.4 cups

Medium Tropical Plant

Plant Type: Tropical Plant; Pot Diameter: 8 inches; Sun Exposure: Medium; Average Temperature: 75 °F

Temperature Factor: 1; Watering Frequency: Every 3-5 days; Sun Exposure Factor: 1; Plant Type Factor: 1; Base Water Amount: 3.2 cups; Water Amount: 3.2 cups

Large Fern

Plant Type: Fern; Pot Diameter: 12 inches; Sun Exposure: Low; Average Temperature: 65 °F

Temperature Factor: 1; Watering Frequency: Every 2-3 days; Sun Exposure Factor: 0.7; Plant Type Factor: 1.2; Base Water Amount: 7.2 cups; Water Amount: 6 cups

People Also Calculate

Related Calculators

Continue with another tool on a related topic.