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15 × 10 ft pond: gallons, liner and pump
A 15 × 10 ft pond with straight sides, 3.0 ft deep, holds 3,366 US gallons (12,743 litres). Adjust the shape and depth below for your pond.
Volume by depth
| Depth | US gallons | Litres | UK gallons | Oval, same size |
|---|---|---|---|---|
| 2 ft | 2,244 | 8,495 | 1,869 | 1,763 (6,672 L) |
| 3 ft | 3,366 | 12,743 | 2,803 | 2,644 (10,008 L) |
| 4 ft | 4,488 | 16,990 | 3,737 | 3,525 (13,344 L) |
What a 15 × 10 ft pond needs at 3.0 ft
| Liner | 23 ft × 18 ft (with 1 ft overlap) |
|---|---|
| Pump — goldfish | 3,366 GPH (12,743 L/h) |
| Pump — koi | 5,049–6,732 GPH (19,114–25,485 L/h) |
| UV clarifier | 55 W goldfish · 75 W koi |
| Fish | 28–56 adult goldfish · up to 13 koi |
| Water weight | 28,090 lb (12,740 kg) |
See the guides to liner sizing and pump sizing, and koi pond depth and volume.
Questions
How many gallons is a 15 × 10 ft pond?
At 3.0 ft deep with straight sides, 3,366 US gallons (12,743 litres, 2,803 UK gallons). An oval pond of the same length and width holds about 79% of that.
What size liner does a 15 × 10 ft pond need?
23 ft × 18 ft for 3.0 ft deep with 1 ft of overlap on each edge.
What size pump for a 15 × 10 ft pond?
About 3,366 GPH (12,743 L/h) of real flow for goldfish, or 5,049–6,732 GPH for koi.