How to Use the Pot Volume Calculator

A Pot Volume Calculator is a digital tool that helps gardeners estimate the volume of a round plant pot using its diameter and height, allowing for better planning in soil usage, watering, and plant growth.

What It Does:

This calculator estimates how many liters of soil a circular plant pot can hold based on basic geometric volume formulas. It assumes the pot is a cylinder, which is a good approximation for most standard pots.

Steps to Use:

1. Enter the pot’s top diameter in centimeters into the first input field.
2. Enter the pot’s height in centimeters into the second field.
3. Click “Calculate Volume”.
4. The calculator will display the volume of the pot in liters, which helps determine:
   • How much soil is needed
   • How much water might be retained
   • If the pot is suitable for a plant’s root system

---

Pot Volume Calculator FAQ

Q1: What formula does this calculator use?
A: It uses the formula for the volume of a cylinder:
    V = π × r² × h
where r is the radius (half of the diameter) and h is the height, all in centimeters. The result is then converted from cubic centimeters to liters (1 liter = 1000 cm³).

Q2: Is this accurate for all pot shapes?
A: No, it assumes the pot is a perfect cylinder. For tapered or decorative pots, the real volume may be slightly less.

Q3: Can I use this for rectangular pots?
A: This version is for round (cylindrical) pots only. For rectangular pots, you would need a different formula: length × width × height.

Q4: What if my pot has a curved bottom?
A: Curved bottoms or lips on pots are not factored into this estimate, so the actual volume might be a bit less.

Q5: How precise is this calculator?
A: It’s accurate for cylindrical pots to within a few percent, which is good enough for most gardening or soil-buying purposes.