Cubic Foot/Second to Acre-Foot/Day Converter

Flow Rate Converter

14 units available

Decimals:

From

To

1.983471

1 cfs = 1.983471 ac·ft/d

Formula:

ac·ft/d = cfs × 1.9834710962

With your value: 1 cfs = 1.9834711 ac·ft/d

Other Cubic Foot/Second to Acre-Foot/Day conversions

2 cfs to ac·ft/d 3 cfs to ac·ft/d 4 cfs to ac·ft/d 5 cfs to ac·ft/d 6 cfs to ac·ft/d 7 cfs to ac·ft/d 8 cfs to ac·ft/d

Cubic Foot/Second to Acre-Foot/Day Conversion Table

Cubic Foot/Second (cfs)	Acre-Foot/Day (ac·ft/d)
0.5	0.991736
1	1.983471
2	3.966942
5	9.917355
10	19.834711
15	29.752066
20	39.669422
25	49.586777
50	99.173555
100	198.34711
250	495.867774
500	991.735548
1000	1,983.471096

Acre-Foot/Day to Cubic Foot/Second Conversion Table

Acre-Foot/Day (ac·ft/d)	Cubic Foot/Second (cfs)
0.5	0.252083
1	0.504167
2	1.008333
5	2.520833
10	5.041667
15	7.5625
20	10.083333
25	12.604167
50	25.208333
100	50.416666
250	126.041665
500	252.083331
1000	504.166661

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Cubic Foot/Second (cfs)

Flow Rate

Exact conversion

Derived quantity: a defined volume divided by a defined time interval (m³/s). All listed units are exact multiples of the cubic metre per second.

Source: ISO 80000, Quantities and units (all parts)

International Organization for Standardization · Reviewed 2026-07-01

Acre-Foot/Day (ac·ft/d)

Flow Rate

Exact conversion

Derived quantity: a defined volume divided by a defined time interval (m³/s). All listed units are exact multiples of the cubic metre per second.

Source: ISO 80000, Quantities and units (all parts)

International Organization for Standardization · Reviewed 2026-07-01

How to Convert Cubic Foot/Second to Acre-Foot/Day

To convert from Cubic Foot/Second (cfs) to Acre-Foot/Day (ac·ft/d), multiply the value by 1.9834710962.

Formula: ac·ft/d = cfs × 1.9834710962

Reverse: cfs = ac·ft/d × 0.5041666611

Step-by-Step Example

Start with your value in Cubic Foot/Second. For example: 5 cfs
Multiply by the conversion factor: 5 x 1.9834710962
The result is: 9.917355 ac·ft/d

About Cubic Foot/Second

The cubic foot/second (cfs) is a unit of flow rate. One cubic foot/second equals 0.02831684659 base units. UnitConvertLab converts it against every other flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: flow rate calculations, engineering and science, education.

About Acre-Foot/Day

The acre-foot/day (ac·ft/d) is a unit of flow rate. One acre-foot/day equals 0.01427641 base units. UnitConvertLab converts it against every other flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: flow rate calculations, engineering and science, education.

Frequently Asked Questions

How many Acre-Foot/Day are in 1 Cubic Foot/Second?

There are exactly 1.9834710962 Acre-Foot/Day in 1 Cubic Foot/Second. This means the conversion factor from Cubic Foot/Second to Acre-Foot/Day is 1.9834710962.

What is the formula to convert Cubic Foot/Second to Acre-Foot/Day?

The formula to convert Cubic Foot/Second to Acre-Foot/Day is: ac·ft/d = cfs × 1.9834710962. For example, to convert 10 Cubic Foot/Second to Acre-Foot/Day, you would multiply 10 by 1.9834710962.

What is a Cubic Foot/Second?