Water Loss Calculator
Understanding the amount of water lost due to leaks is essential for taking action to conserve water, protect the environment, and save on utility bills. Even a small, seemingly insignificant leak can waste thousands of gallons of water over time, leading to unnecessary costs and resource depletion.
With our Water Loss Calculator, you can easily estimate how much water is being lost due to leaks in your home, property, or business. This simple tool provides valuable insights, helping you understand the true impact of leaks and the importance of addressing them promptly.
Hole‑in‑Pipe Leak Calculator
| Time Period | Total Water Lost (Gallons) |
|---|---|
| 1 Hour | 0 |
| 1 Day | 0 |
| 1 Week | 0 |
| 1 Month | 0 |
| 1 Year | 0 |
Not Sure What to Enter? Use These Leak Size & Pressure Estimates
Most people don’t know the exact width of a leak or how much pressure is in their pipes. That’s totally fine, we’ve got you covered with these easy guidelines. You can use the examples below to estimate and input the correct values into the calculator.
Common Leak Sizes (Diameter of Hole):
| Leak Type | Fractional Size | Decimal Size (inches) | Description |
|---|---|---|---|
| Tiny pinhole | 1/64″ | 0.0156 | Extremely small leak, like a needle prick |
| Small pinhole | 1/32″ | 0.0313 | Very small drip, common in old copper pipes |
| Standard pinhole | 1/16″ | 0.0625 | Most common leak size in residential plumbing |
| Medium crack | 1/8″ | 0.1250 | Noticeable stream or trickle of water |
| Large split | 3/16″ | 0.1875 | Strong spray, potentially high-pressure flow |
| Burst pipe | 1/4″ | 0.2500 | Heavy flow, immediate visible damage |
Tip: If you’re unsure, start with 0.0625 (1/16″). That’s the most common for small leaks.
Typical Water Pressure Estimates (PSI):
| Location / Situation | Estimated PSI | Notes |
|---|---|---|
| Interior leak with a pressure regulator | 65 PSI | Most modern homes have regulators |
| Exterior leak or hose bib | 80 PSI | Outdoor lines often have higher pressure |
| No pressure regulator installed | 80 PSI | Common in older or DIY systems |
| Elevated areas (above surrounding city) | 95 PSI | Gravity increases pressure in hilltop homes |
Tip: Still not sure? Try 65 PSI for inside leaks, and 80 PSI for outside.
Example Inputs for Common Situations:
- Dripping pipe under your kitchen sink?
→ Leak Width: 1/16 inch, Pressure: 65 PSI - Outdoor spigot spraying water?
→ Leak Width: 1/8 inch, Pressure: 80 PSI - Main line leak on a hillside property?
→ Leak Width: 1/4 inch, Pressure: 95 PSI - Can’t find the regulator? Not sure?
→ Leak Width: 1/16 inch, Pressure: 80 PSI
Just Pick the Closest Match
Even if you’re unsure of the exact measurements, a close estimate is better than guessing blindly. Our goal is to help you visualize the true impact of that leak, whether it’s a tiny pinhole under the sink or a busted line in the yard. Small leaks add up fast, and this tool gives you the insight to take action before water waste turns into major damage. Plug in your numbers and see the difference it makes!
