Free Pond Volume Calculator - Gallons & Liters | Pond Calculator
Free pond volume calculator. Enter dimensions to calculate water volume in gallons and liters. Supports rectangular, circular, oval, and irregular pond shapes.
How to Use the Pond Volume Calculator
Enter your pond's length, width, and average depth to calculate water volume in gallons and liters. Supports rectangular, circular, oval, and irregular pond shapes.
For irregular ponds, the calculator combines two sections (rectangular + oval) for an estimate. Actual volume may vary, so allow approximately 10% extra capacity.
Both US (ft, gal) and metric (m, L) units are supported. Switch unit systems and all values convert automatically.
FAQ
How many gallons does a 10×6×2 foot pond hold?
A rectangular pond 10ft × 6ft × 2ft deep holds approximately 898 gallons (10 × 6 × 2 × 7.48 = 897.6 gallons). Always add 10% extra capacity for irregular shapes and water displacement by rocks and plants.
How do I calculate the volume of an irregular-shaped pond?
Divide the pond into two sections (e.g., a rectangular main area and an oval extension). Calculate each section separately and add them together. Our calculator handles this automatically with the irregular shape option.
What is the minimum pond volume for koi fish?
Koi require at least 250 gallons per fish, with a minimum pond depth of 3 feet. A pond for 5 koi should hold at least 1,250 gallons. Larger is always better for water quality and fish health.
How does pond depth affect water volume calculations?
Depth has a linear effect on volume. Doubling the depth doubles the volume. For koi ponds, a minimum depth of 3 feet (0.9m) is recommended to protect fish from predators and temperature extremes.
Can I contact you for help designing my pond?
Yes! For personalized pond design advice, reach out to us at card.workshop@gmail.com. We're happy to help with volume calculations and pond planning.