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3 × 2 m pond: gallons, liner and pump
A 3 × 2 m pond with straight sides, 0.80 m deep, holds 1,268 US gallons (4,800 litres). Adjust the shape and depth below for your pond.
Volume by depth
| Depth | US gallons | Litres | UK gallons | Oval, same size |
|---|---|---|---|---|
| 60 cm | 951 | 3,600 | 792 | 747 (2,827 L) |
| 80 cm | 1,268 | 4,800 | 1,056 | 996 (3,770 L) |
| 100 cm | 1,585 | 6,000 | 1,320 | 1,245 (4,712 L) |
What a 3 × 2 m pond needs at 0.80 m
| Liner | 5.50 m × 4.50 m (with 30 cm overlap) |
|---|---|
| Pump — goldfish | 1,268 GPH (4,800 L/h) |
| Pump — koi | 1,902–2,536 GPH (7,200–9,600 L/h) |
| UV clarifier | 18 W goldfish · 36 W koi |
| Fish | 10–21 adult goldfish · up to 5 koi |
| Water weight | 10,580 lb (4,800 kg) |
Koi need about 3 ft (90 cm) of depth; this pond is deep enough for goldfish but shallow for koi.
See the guides to liner sizing and pump sizing.
Questions
How many gallons is a 3 × 2 m pond?
At 0.80 m deep with straight sides, 1,268 US gallons (4,800 litres, 1,056 UK gallons). An oval pond of the same length and width holds about 79% of that.
What size liner does a 3 × 2 m pond need?
5.50 m × 4.50 m for 0.80 m deep with 30 cm of overlap on each edge.
What size pump for a 3 × 2 m pond?
About 1,268 GPH (4,800 L/h) of real flow for goldfish, or 1,902–2,536 GPH for koi.