Rainwater Harvesting Calculator
Rainwater Collection Calculator | Rainwater Catchment Calculator| Roof Rainfall Calculator
Calculate Your Water Harvesting Potential Using Our Handy Rainwater Catchment Calculator.
Rainwater Harvesting Calculator | Rainwater Catchment Calculator
We have created this calculator below to help you to determine how much water you can catch each year into your rainwater tank.
Add in your Roof Size & Annual Rainfall
Find the average annual rainfall for your area: Weather Zone
Popular Rainwater Tank Sizes
2000l Slimline Water Tanks
3000l Slimline Water Tanks
5000l Slimline Water Tanks
8000l Slimline Water Tanks
2000l Round Water Tanks
3000l Round Water Tanks
5000l Round Water Tanks
10000l Round Water Tanks
15000l Round Water Tanks
20000l Round Water Tanks
25000l Round Water Tanks
5000 Gallon Water Tanks
Need help selecting which tank is right for you?
For a full list and breakdown on pricing for all Our Steel Water Tanks, Filtration Systems & Accessories.
Please click below or contact us.
Slimline Water Tank Size & Capacity Guide
| Approx. Capacity | Width x Length x Height (mm) |
| 1,500 Litres (330 Gallons) | 700 x 1600 x 1560 |
| 2,000 Litres (440 Gallons) | 650 x 2200 x 1560 |
| 3,000 Litres (660 Gallons) | 850 x 2100 x 1880 |
| 5,000 Litres (1100 Gallons) | 700 x 4000 x 1880 |
| 7,500 Litres (1650 Gallons) | 1150 x 3100 x 2350 |
| 8,500 Litres (1870 Gallons) | 1150 x 3400 x 2350 |
Round Water Tank Size & Capacity Guide
| Approx Capacity | Diameter x Height (mm) |
| 2,000 Litres (440 Gallons) | 1300 x 1560 |
| 3,000 Litres (660 Gallons) | 1300 x 2350 |
| 5,000 Litres (1100 Gallons) | 1900 x 1880 |
| 8,000 litres (1750 Gallons) | 2300 x 1880 |
| 10,000 litres (2200 Gallons) | 2900 x 1560 |
| 15,000 litres (3300 Gallons) | 3500 x 1560 |
| 20,000 litres (4400 Gallons) | 3300 x 2350 (1) |
| 20,000 litres (4400 Gallons) | 3700 x 1880 (2) |
| 20,000 litres (4400 Gallons) | 2900 x 3100 (3) |
| 22,619 litres (5000 Gallons) | 3500 x 2350 |
| 29,800 litres (6555 Gallons) | 3500 x 3100 |
More Than Just a Manufacturer of Steel Rainwater Tanks
Tailored Solutions
We find the perfect solution for your rainwater harvesting system needs.
Quality Guaranteed
Highest quality Stainless steel water tanks backed by 30 years non corrosion warranty. Our Colorbond Tanks are backed by 20-years non corrosion warranty.
Industry Leading
We are the first Australian company to design and manufacture stainless steel water tanks.
Looking for Help or Advice?
If you need any help with Steel Water Tank Pricing, Custom Sizing, Delivery Charges or anything else
Please contact us today – we are here to help.
