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Estimates Only: This calculator provides estimates based on typical usage. Contact your water company for exact rates.
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Knowing how to read a water meter helps you track usage, spot leaks, and verify your bills. This water meter reading guide covers both digital water meter and dial water meter types found across the UK. A quick water meter check each month could save you hundreds of pounds.
Before you can read water meter uk readings, you need to locate it. Your water meter is usually in one of two places. Finding your meter is the first step in any water meter check.
Most UK water meters are installed outside your property. Look for a small covered box (with a blue or black lid) near the pavement, at the boundary of your property, or close to the external stopcock.
Some properties have an internal water meter, especially flats and newer builds. Check these common locations for your water meter reading.
A digital water meter is the most common type in UK homes. Here is a step-by-step guide to taking your water meter reading from a digital water meter.
Find your water meter outside in the pavement box or inside your property. Use the location guide above.
Carefully open the meter box lid. You may need a flat-head screwdriver. Wipe the water meter face clean if dirty or wet.
The black (or white) numbers show your total water meter reading in cubic metres (m³). Read them from left to right, just like reading a car odometer.
The red numbers show litres (fractions of a cubic metre). You do not need these for your water meter reading — your water company only uses the black numbers for billing.
Write down or photograph the black numbers. This is your water meter reading in cubic metres. Use our reading calculator to convert this into a bill estimate.
Some older properties have a dial water meter instead of a digital display. A dial water meter has several small circular dials. Here is how to read a water meter with dials.
A dial water meter has several small dials. Read them in order from left to right, just like a clock face. Each dial represents a different unit of measurement.
If the pointer on any dial sits between two numbers, always record the lower number for your water meter reading. For example, if the pointer is between 3 and 4, record 3.
Just like a digital water meter, ignore the red dials on a dial water meter. Only the black dials are needed for your water meter reading. The red dials measure litres.
Once you know how to read a water meter, you need to understand what the numbers mean. Your water meter reading is measured in cubic metres (m³).
1 m³
= 1,000 litres of water
~£1.85
average cost per m³ (water)
~145 L
UK average per person/day
To work out how much water you have used between two water meter readings:
Usage (m³) = Current Reading - Previous Reading
For example: If your current water meter reading is 1,245 m³ and your previous reading was 1,210 m³, you have used 35 m³ (35,000 litres) since your last water meter check.
Follow these tips to get the most out of your water meter reading guide and ensure every water meter check is accurate.
Photograph your water meter reading each time. This creates a record and avoids mistakes when writing numbers down.
A monthly water meter check helps you spot unusual usage patterns and catch leaks early before they become expensive.
Take your water meter reading at the same time each month for consistent comparisons. Early morning before water use is ideal.
If your water meter reading seems higher than expected, you may have a leak. Use the leak detection method below.
A sudden increase in your water meter reading could indicate a leak. Here is how to use your water meter to perform a simple water meter check for leaks.
Turn off all water in your home — all taps, appliances, showers, and anything that uses water. Make sure no one uses water during the test.
Take a water meter reading and note the exact numbers, including any red digits or dial positions.
Wait 30 minutes without using any water, then check the meter again. If the numbers have changed, water is still flowing — you likely have a leak.
Contact your water company immediately. Most water companies will investigate leaks on their side of the meter for free. You may be eligible for a leakage allowance on your bill. Visit Ofwat for more information on your rights.
Common questions about how to read a water meter and taking a water meter reading in the UK.
To read water meter uk, locate the meter (usually outside in a pavement box), lift the cover, and read the black numbers from left to right. These show your usage in cubic metres (m³). Ignore the red numbers — they show litres and are not needed for billing.
The black numbers on your water meter show total usage in cubic metres (m³). 1 m³ equals 1,000 litres. The red numbers show fractions of a cubic metre. To calculate usage, subtract your previous water meter reading from the current one.
Most UK water meters are outside in a small covered box near the pavement. Some are inside, typically under the kitchen sink, in an airing cupboard, or near the internal stopcock. Check your water company's website if you cannot find it.
You should perform a water meter check at least once a month. Regular water meter readings help you track usage, spot leaks early, and verify your bills are accurate.
Turn off all water in your home, take a water meter reading, wait 30 minutes, then check again. If the numbers have changed, you may have a leak. Contact your water company for assistance.
A digital water meter has a straightforward numeric display. A dial water meter has several small circular dials you read left to right. Both measure usage in m³ — read the black numbers/dials and ignore the red ones.
For more information on how to read a water meter and your rights as a customer, visit these trusted UK sources.
Now you know how to read a water meter, use our free calculator to turn your water meter reading into an estimated water bill.
Calculate Your Water BillExplore more tools and guides to help you understand your water meter and save money on your bills.