How much water does a single person use per day?

A single-person household typically uses around 149 litres of water per day. Single occupants tend to use slightly more per person than those in larger households because certain water uses — like running a dishwasher or washing machine — have fixed minimums regardless of household size.

Average Water Usage Calculator

Q: What is the average water usage per person in the UK?

The average person in England uses around 140 litres of water per day, according to government data from 2023/24. This figure has fallen from 169 litres in 2005/06 but remains higher than the government's target of 130 litres per person per day.

Q: How much water does a household of 4 use per day?

A household of four typically uses around 450 litres of water per day, based on UK average per-person consumption of around 140 litres. This equates to approximately 164 cubic metres per year.

Q: Does having a water meter reduce usage?

Yes. On average, metered households in England and Wales use around 129 litres per person per day compared to 171 litres for unmetered households. The act of measuring and paying for usage directly encourages more mindful consumption.

Q: How is water usage measured?

Water usage is measured in cubic metres (m³) or litres. One cubic metre equals 1,000 litres. Metered households pay per m³ consumed plus a daily standing charge. Unmetered households pay based on their property's rateable value regardless of actual usage.

Enter your household size and whether you have a water meter to see your estimated daily and annual water usage — and how it compares to the UK average. A useful starting point before checking whether a water meter could save you money.

Tip! — The UK average is around 140 litres per person per day. Metered households typically use around 129 litres/person/day — about 25% less than unmetered households at 171 litres.

Number of People in Household
Do You Have a Water Meter?
Shower Habits
Garden Watering

Your Estimated Daily Usage

Usage Breakdown

Metric	Your Household	UK Average*
Run calculation to see breakdown

*UK average based on government data for a household of the same size

GUIDE

Average Water Usage in the UK — How Does Your Home Compare?

Find out what the UK average water usage is, how it breaks down by household size, and where most of your water actually goes.

Read Guide →

How to Use the Water Usage Calculator

Step-by-Step

Select your household size — the number of people regularly living in your home.
Select your meter status — metered households pay per m³ used; unmetered households pay a fixed charge based on their property's rateable value regardless of usage.
Select your shower habits — shower length is one of the biggest variables in household water consumption.
Select your garden watering habits — garden use can add significantly to summer consumption, especially with a hosepipe or sprinkler.
Click Calculate — see your estimated daily and annual usage in litres and m³, and how it compares to the UK average for a household of your size.

What Affects Your Water Usage?

Household water consumption is driven primarily by the number of occupants, showering habits, and whether you have a water meter. Metered households use around 25% less water on average than unmetered households — largely because direct billing creates awareness of usage. The biggest single variable for most households is shower length and frequency.

UK Government Target

The government's target is 130 litres per person per day by 2040. The current national average is around 140 litres — so most UK households are using more than the target. If your estimated usage is above average, the guide on reducing your water bill covers the practical steps that make the biggest difference.

Metered vs Unmetered

If you do not have a water meter, your bill is the same regardless of how much water you use. That removes the financial incentive to reduce consumption. If you are on a meter your bill directly reflects your usage — every litre saved reduces your bill. See our guide on Water Meter vs Unmetered — Which Is Cheaper? to find out if switching to a meter would save you money.

Frequently Asked Questions

What is the average water usage per person in the UK?

Around 140 litres per person per day, based on government data from 2023/24. This is down from 169 litres in 2005/06 but still above the government's 2040 target of 130 litres.

How much water does a household of 4 use per day?

A household of four typically uses around 450 litres per day — approximately 164 cubic metres per year. This is based on UK average per-person consumption of around 140 litres.

Does having a water meter reduce usage?

Yes — metered households use around 129 litres per person per day on average, compared to 171 litres for unmetered households. Paying directly per m³ creates awareness and financial incentive to use less.

How is water usage measured?

In cubic metres (m³) or litres. One cubic metre equals 1,000 litres. Metered households are charged per m³ consumed. Your water meter shows cumulative m³ used — subtract your previous reading from the current one to find consumption for any period.

What uses the most water in a typical UK home?

Toilets and showers together account for over half of typical household water use. After that, washing machines, baths, and garden watering are the next largest contributors. A leaking toilet can waste between 215 and 400 litres per day silently.