Calculate a restaurant's daily water use from non-overlapping kitchen, restroom, and other usage. The monthly and yearly estimates use fixed 30-day and 365-day periods. Gallons are US liquid gallons; the optional USD cost covers only the entered uniform rate per 1,000 US gallons.

Enter non-overlapping daily averages in the selected unit. Blank components count as zero. Estimates assume 30 days/month and 365 days/year at that average.

Related Calculators

Restaurant Water Use Formula

The following equation is used to calculate the Restaurant Water Use.

RWU = K + R + O
  • Where RWU is the total restaurant water use (gallons/day, liters/day, etc.)
  • K is the water used in the kitchen (cooking, dishwashing)
  • R is the water used in restrooms
  • O is the other daily operational water usage

To calculate daily restaurant water use, add kitchen, restroom, and other daily averages in the same unit, without counting the same use twice. Blank categories count as zero. Multiply by 30 or 365 for the fixed-duration estimates; use an average that includes closed days when projecting calendar periods. The optional cost excludes fixed, sewer, tiered and other charges.

What is Restaurant Water Use?

Definition:

Restaurant water use refers to the total volume of water consumed by a restaurant in daily operations, including but not limited to kitchen tasks, cleaning, restrooms, and other necessary functions.

How to Calculate Restaurant Water Use?

Example Problem:

The following example outlines the steps and information needed to calculate the Restaurant Water Use.

First, determine the kitchen water usage. For example, the kitchen may use 200 gallons of water per day for cooking and dishwashing.

Next, determine the restroom water usage. Maybe the restrooms use 150 gallons of water per day.

Finally, determine other daily operational water usage. Assume this amounts to 50 gallons per day.

Using the formula above:

RWU = K + R + O

RWU = 200 + 150 + 50

RWU = 400 gallons/day

FAQ

What factors can affect a restaurant’s water usage?

Several factors can influence a restaurant’s water usage, including the type and volume of dishes prepared, the efficiency of dishwashing procedures, the maintenance and cleanliness practices, and the number of patrons served. Upgrading or optimizing equipment such as faucets, spray valves, and dishwashers can also affect overall water consumption.

How can I reduce my restaurant’s water usage?

To reduce water consumption, consider installing water-efficient fixtures, training staff on best practices for cleaning and dishwashing, fixing leaks promptly, and reusing or recycling water when safe and appropriate. Regular equipment maintenance is crucial for optimal performance and lower water usage.

Should I track water usage daily or monthly?

The frequency of tracking water usage can depend on the scale of your operations and your conservation goals. Daily tracking provides a detailed view of short-term patterns, helping quickly identify spikes or leaks. Monthly tracking offers a broader perspective that can be useful for budgeting and long-term efficiency planning. Many restaurants find a combination of both daily and monthly tracking to be most effective.