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Calcimator

Water Usage Calculator

Estimate your daily, monthly, and annual water usage and cost. Identify which activities use the most water.

Inputs

min

Results

Daily Usage

46.5 gal

Monthly Usage1,394 gal
Annual Usage16,957 gal
Monthly Cost$8.36
Annual Cost$101.74

Daily Usage

46.5 gal

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Showers per Week — Total number of showers taken per week by all household members Accepts values from 0 to 21 (default: 7).
  3. Avg Shower Length — Average duration of each shower in minutes Accepts values from 1 min to 60 min (default: 8 min).
  4. Toilet Flushes per Day — Total daily toilet flushes for the entire household Accepts values from 0 to 30 (default: 6).
  5. Laundry Loads per Week — Number of washing machine loads run per week Accepts values from 0 to 20 (default: 3).
  6. Dishwasher Runs per Week — How many times per week you run the dishwasher Accepts values from 0 to 14 (default: 4).
  7. Expand "Advanced Options" for additional fine-tuning. These optional inputs let you model more specific scenarios:
  8. Water Rate — Price per 1,000 gallons from your water utility bill Accepts values from $1 /1000 gal to $30 /1000 gal (default: $6 /1000 gal).
  9. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  10. Daily Usage — shown as a numeric value. This is the primary result of this calculator.
  11. Monthly Usage — shown as a numeric value.
  12. Annual Usage — shown as a numeric value.
  13. Monthly Cost — shown as a dollar amount.
  14. Annual Cost — shown as a dollar amount.
  15. View the Annual Usage by Activity below for a visual breakdown of how the numbers relate to each other.
  16. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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