Plumbing leak flow from meter calculator

Calculate observed flow and daily equivalent volume with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use observed flow and daily equivalent volume to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Initial meter reading (m³)
125
Final meter reading (m³)
125.12
Observation interval (minutes)
30
Observed flow (litres/min)
4
Daily equivalent volume (litres/day)
5,760

Try another scenario

Initial meter reading (m³)
112.5
Final meter reading (m³)
125.12
Observation interval (minutes)
30
Observed flow (litres/min)
420.666667
Daily equivalent volume (litres/day)
605760
Calculation method

Calculation method

Observed flow (litres/min)

Meter volume increase / elapsed time; daily equivalent assumes unchanged flow.

Daily equivalent volume (litres/day)

Meter volume increase / elapsed time; daily equivalent assumes unchanged flow.

Symbols and units
a
Initial meter reading (m³)
b
Final meter reading (m³)
c
Observation interval (minutes)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • User-supplied measurements and assumptions; Meter volume increase / elapsed time; daily equivalent assumes unchanged flow. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
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