Watering Cost Calculator

Your lawn needs at least one inch of water per week. Which takes a little over half a gallon per square foot (0.623 gallons). That means that every 10’x10’ area will require over 62 gallons of water to give your grass the water it needs. That doesn’t sound like much until you consider that a 100’ x 100’ lawn uses 6,230 gallons of water!

To calculate the amount of water you use, multiply the width times the length of your yard in feet to get the number of square feet of area. Or if you know your property’s size already, just enter it below.

Now that you know how much water you’re using, you can estimate how much it will cost to keep your lawn green. So for every 1,000 gallons of water that comes out of your faucet, you are also charged not only for the water but for 1,000 gallons of sewerage. This is true whether it goes down the street or on your grass.

To calculate the cost of watering your yard, divide the number of gallons used by 1,000 then multiply by the price you pay per 1,000 gallons (see our calculator below).

In Dallas, Texas it costs $8.16 per 1,000 gallons for water plus $6.91 per 1,000 gallons for sewer, for a total of $15.07 for every 1,000 gallons of water that comes out of the tap. That means that to supply a 100’ x 100’ yard with one inch of water costs over $93. If you water your yard one inch every week during the summer, the cost will add up to close to $400 a month just in water for your lawn.

But we can help! We specialize in slashing water bills while getting the results you want with your lawn. With a few tweaks and almost no digging, we can optimize your system, making it fully water-efficient. No more run-off, no misting, near-perfect uniformity, correct coverage, proper run times per zone for your soil type and plant needs, and much more.