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2 × 1.5 m pond: gallons, liner and pump
A 2 × 1.5 m pond with straight sides, 0.60 m deep, holds 476 US gallons (1,800 litres). Adjust the shape and depth below for your pond.
Volume by depth
| Depth | US gallons | Litres | UK gallons | Oval, same size |
|---|---|---|---|---|
| 50 cm | 396 | 1,500 | 330 | 311 (1,178 L) |
| 60 cm | 476 | 1,800 | 396 | 373 (1,414 L) |
| 80 cm | 634 | 2,400 | 528 | 498 (1,885 L) |
What a 2 × 1.5 m pond needs at 0.60 m
| Liner | 4.00 m × 3.50 m (with 30 cm overlap) |
|---|---|
| Pump — goldfish | 476 GPH (1,800 L/h) |
| Pump — koi | 713–951 GPH (2,700–3,600 L/h) |
| UV clarifier | 9 W goldfish · 11 W koi |
| Fish | 3–7 adult goldfish · not big enough for koi |
| Water weight | 3,970 lb (1,800 kg) |
Under 2 ft (60 cm) deep the water heats up fast in summer and can freeze solid in winter — too shallow for fish in most climates. Under 1,000 US gallons (3,800 L) is too small for koi, which grow to 18–24 in.
See the guides to liner sizing and pump sizing.
Questions
How many gallons is a 2 × 1.5 m pond?
At 0.60 m deep with straight sides, 476 US gallons (1,800 litres, 396 UK gallons). An oval pond of the same length and width holds about 79% of that.
What size liner does a 2 × 1.5 m pond need?
4.00 m × 3.50 m for 0.60 m deep with 30 cm of overlap on each edge.
What size pump for a 2 × 1.5 m pond?
About 476 GPH (1,800 L/h) of real flow for goldfish, or 713–951 GPH for koi.