Understanding Water Equivalents Table
- One acre-foot is roughly a football field with 1 ft of standing water
- One acre-foot is believed to supply a family of 5 for one year.
- One acre-foot/yr for a Single Family home w/3 acres.
- 1 cubic foot per second (cfs) = 448.8 gallons per minute
- 1 cubic foot per second (cfs) = 646,360 gallons per day
- 1 cfs = 40 Montana Miners Inches
- 1 cfs running for 24 hours = 1.983 acre-feet
- 1 cfs running for 30 days = 59.5 acre-feet
- 1 cfs running for 1 year = 724 acre-feet
- 1 million gallons = 3.07 acre-feet
- 1 million gallons per day (mgd) = 1,122 acre-feet per year
- 1,000 gallons per minute (gpm) = 2.23 cfs
- 1,000 gpm = 4.42 acre-feet per day
- 1 cubic foot = 7.48 gallons = 62.4 pounds of water
- 1 acre-foot = 43,560 cubic feet = 325,900 gallons
Linear Measure
- 1 Inch=…………………………………………… .0833 Ft
- 7.92 Inches=……………………………………. 1 Link
- 12 Inches=……………………………………… 1 Foot
- 1 Vara= approx………………………………… 33 Inches
- 2 ¾ Feet=approx………………………………. 1 Vara
- 3 Feet=…………………………………………… 1 Yard
- 25 Links=……………………………………….. 16 ½ Feet
- 25 Links=……………………………………….. 1 Rod
- 100 Links=………………………………………. 1 Chain
- 16 ½ Feet=……………………………………… 1 Rod
- 5 ½ Yards=……………………………………… 1 Rod
- 4 Rods=…………………………………………. 100 Links
- 66 Feet=…………………………………………. 1 Chain
- 80 Chains=……………………………………… 1 Mile
- 320 Rods=………………………………………. 1 Mile
- 5280 Feet=……………………………………… 1 Mile
- 1760 Yards=……………………………………. 1 Mile
Square Measure
- 144 Sq. In.=…………………………………….. 1 Sq. Ft.
- 9 Sq. Ft.=……………………………………….. 1 SQ Yard
- 30 ¼ Sq Yards=……………………………….. 1 Sq. Rod
- 16 Sq. Rods=………………………………….. 1 Sq Chain
- 1 Sq. Rod=……………………………………… 272 ¼ Sq. Ft.
- 1 Sq. Chain=…………………………………… 4356 Sq. Ft.
- 10 Sq Chains=…………………………………. 1 Acre
- 160 Sq. Rods=…………………………………. 1 Acre
- 4840 Sq. Yards=………………………………. 1 Acre
- 43560 Sq. Ft.=…………………………………. 1 Acre
- 640 Acres=……………………………………… 1 Sq Mile
- 1 Section=………………………………………. 1 Sq. Mile
- 1Twp.=…………………………………………… 36 Sq. Miles
- 1 Twp.=………………………………………….. 6 Sq. Miles
- 1 Acre=………………………………………….. 43,560 Sq. Ft.
- 165 Feet x 264 Feet or 198 Feet x 220 Feet
- 5280 Feet x 8.25 Feet or 2640 Feet x 16.50 Feet
- 1320 Feet x 33 Feet or 660 Feet x 66 Feet
- 330 Feet x 132 Feet or 160 Square rods
- 208’8 ½” Square or 208.71033 Feet Square