This page converts acre-feet per day into liters per second using the factor 14.27641016, and shows the reverse figure alongside it. Both units measure volumetric flow, which is why one number does the whole job.
Irrigation and reservoir release rates in the western United States. Used for plumbing design and compressed air.
Standard versus actual volume. Gas flow in CFM depends on pressure and temperature, which is why compressor ratings say SCFM and specify the reference conditions. Converting the number is exact; comparing two ratings measured at different conditions is not. The tables underneath give both a plain step-by-step lookup and a list of real quantities expressed in liters per second, so you can sanity-check whether your answer is a plausible size.
The formula
acre-feet per day- The amount you are converting, in acre-feet per day
14.2764101563- The exact number of liters per second in one acre-foot per day
liters per second- The converted result
How it works, step by step
- Enter the value in acre-feet per day.
- It is multiplied by 14.2764101563, the exact factor between the two units.
- The answer is shown in liters per second, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A garden hose: 0.021 ac ft/d in liters per second
At 0.021 ac ft/d (a garden hose), the same quantity in liters per second is 0.021 × 14.2764 = 0.299805 L/s. One acre-foot per day is 14.2764 liters per second, so the numbers grow as expected.
The Thames at London: 4550 ac ft/d in liters per second
The Thames at London comes to about 4550 ac ft/d. Multiplying by the factor: 4550 × 14.2764 = 64,957.7 L/s. Dividing the answer back by 14.2764 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
How to read your score
Frequently asked questions
How many liters per second are in one acre-foot per day?
Exactly 14.2764101563. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert acre-feet per day to liters per second?
liters per second = acre-feet per day × 14.2764101563. Reversed, acre-feet per day = liters per second ÷ 14.2764101563, which is the same as multiplying by 0.0700456199457.
Which is the bigger unit, the acre-foot per day or the liter per second?
The acre-foot per day. One acre-foot per day equals 14.2764 liters per second.
What does this quantity actually measure?
Both units measure volumetric flow. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a acre-foot per day?
Irrigation and reservoir release rates in the western United States.
What is a liter per second?
Used for plumbing design and compressed air.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Is there a quick way to do ac ft/d to L/s in my head?
Plenty of people do this in their head: multiply by 14 instead of using the exact factor 14.27641016. At 100 that shortcut gives 1400 liters per second, off by 27.64 liters per second or about 1.94%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Acre-Feet Per Day to liters per second reference tables
| Acre-Feet Per Day | Liters Per Second |
|---|---|
| 0.5 ac ft/d | 7.13821 L/s |
| 1 ac ft/d | 14.2764 L/s |
| 2 ac ft/d | 28.5528 L/s |
| 3 ac ft/d | 42.8292 L/s |
| 5 ac ft/d | 71.3821 L/s |
| 10 ac ft/d | 142.764 L/s |
| 20 ac ft/d | 285.528 L/s |
| 25 ac ft/d | 356.91 L/s |
| 50 ac ft/d | 713.821 L/s |
| 75 ac ft/d | 1070.73 L/s |
| 100 ac ft/d | 1427.64 L/s |
| 250 ac ft/d | 3569.1 L/s |
| 500 ac ft/d | 7138.21 L/s |
| 1000 ac ft/d | 14,276.4 L/s |
| 5000 ac ft/d | 71,382.1 L/s |
Exact factor: 1 acre-foot per day = 14.2764101563 liters per second.
| Quantity | ac ft/d | L/s |
|---|---|---|
| A dripping tap | 7.005e-06 ac ft/d | 0.0001 L/s |
| A bathroom tap | 0.007005 ac ft/d | 0.1 L/s |
| A shower head | 0.01121 ac ft/d | 0.16 L/s |
| A garden hose | 0.02101 ac ft/d | 0.3 L/s |
| A fire hydrant | 4.203 ac ft/d | 60 L/s |
| The Thames at London | 4553 ac ft/d | 6.5e+04 L/s |
Published reference values, converted with the same factor this page uses.