One acre-foot per day is exactly 0.8565846094 cubic meters per minute, so converting acre-feet per day to cubic meters per minute is a single multiplication. Enter any figure and the result appears as you type — the arithmetic runs in your browser, so nothing is sent anywhere.
Irrigation and reservoir release rates in the western United States. Compressor and large-fan output in metric markets.
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. Below the calculator there is a step table for the values people look up most, and a second table putting real volumetric flow figures into cubic meters per minute so the number you get has something to be compared against.
The formula
acre-feet per day- The amount you are converting, in acre-feet per day
0.85658460938- The exact number of cubic meters per minute in one acre-foot per day
cubic meters per minute- The converted result
How it works, step by step
- Enter the value in acre-feet per day.
- It is multiplied by 0.85658460938, the exact factor between the two units.
- The answer is shown in cubic meters per minute, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A shower head: 0.0112 ac ft/d in cubic meters per minute
At 0.0112 ac ft/d (a shower head), the same quantity in cubic meters per minute is 0.0112 × 0.856585 = 0.00959375 m³/min. One acre-foot per day is 0.856585 cubic meters per minute, so the numbers shrink as expected.
The Thames at London: 4550 ac ft/d in cubic meters per minute
Take the thames at london, roughly 4550 ac ft/d. The conversion is a single multiplication — 4550 × 0.856585 — giving 3897.46 m³/min. Because the relationship is proportional, doubling the input doubles the answer to 7794.92 m³/min.
How to read your score
Frequently asked questions
How many cubic meters per minute are in one acre-foot per day?
Exactly 0.85658460938. 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 cubic meters per minute?
cubic meters per minute = acre-feet per day × 0.85658460938. Reversed, acre-feet per day = cubic meters per minute ÷ 0.85658460938, which is the same as multiplying by 1.1674269991.
Which is the bigger unit, the acre-foot per day or the cubic meter per minute?
The cubic meter per minute. One acre-foot per day is only 0.856585 of a cubic meter per minute, so it takes 1.16743 acre-feet per day to make one cubic meter per minute.
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 cubic meter per minute?
Compressor and large-fan output in metric markets.
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 m³/min in my head?
Plenty of people do this in their head: divide by 1.2 instead of using the exact factor 0.8565846094. At 100 that shortcut gives 83.333333 cubic meters per minute, off by 2.325 cubic meters per minute or about 2.71%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Acre-Feet Per Day to cubic meters per minute reference tables
| Acre-Feet Per Day | Cubic Meters Per Minute |
|---|---|
| 0.5 ac ft/d | 0.428292 m³/min |
| 1 ac ft/d | 0.856585 m³/min |
| 2 ac ft/d | 1.71317 m³/min |
| 3 ac ft/d | 2.56975 m³/min |
| 5 ac ft/d | 4.28292 m³/min |
| 10 ac ft/d | 8.56585 m³/min |
| 20 ac ft/d | 17.1317 m³/min |
| 25 ac ft/d | 21.4146 m³/min |
| 50 ac ft/d | 42.8292 m³/min |
| 75 ac ft/d | 64.2438 m³/min |
| 100 ac ft/d | 85.6585 m³/min |
| 250 ac ft/d | 214.146 m³/min |
| 500 ac ft/d | 428.292 m³/min |
| 1000 ac ft/d | 856.585 m³/min |
| 5000 ac ft/d | 4282.92 m³/min |
Exact factor: 1 acre-foot per day = 0.85658460938 cubic meters per minute.
| Quantity | ac ft/d | m³/min |
|---|---|---|
| A dripping tap | 7.005e-06 ac ft/d | 6e-06 m³/min |
| A bathroom tap | 0.007005 ac ft/d | 0.006 m³/min |
| A shower head | 0.01121 ac ft/d | 0.0096 m³/min |
| A garden hose | 0.02101 ac ft/d | 0.018 m³/min |
| A fire hydrant | 4.203 ac ft/d | 3.6 m³/min |
| The Thames at London | 4553 ac ft/d | 3900 m³/min |
Published reference values, converted with the same factor this page uses.