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cmh to cfm Calculator

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Indeed, it is important to convert between different measuring units when measuring air movement. You might need to convert two common units cubic meters per hour (cmh) and cubic feet per minute (cfm)

Cubic meters per hour tells you the amount of air in cubic meters going by per hour.

Cubic feet per minute tells you the amount of air in cubic feet going by per minute.

Cubic Meters per Hour (cmh) to Cubic Feet per Minute (cfm) Converter

 

What is cmh?

Cubic meters per hour is a metric unit used to measure air flow. It’s used for heating, air conditioning and factories where airflow needs precise counting.

What is cfm?

Cubic feet per minute is an imperial unit used to measure air flow per minute. America and other imperial countries often use it to count airflow.

Conversion  Formula

To convert between cmh and cfm, use this formula:

cfm=cmh×0.588578

Demystifying Flow Rates: CFM vs. m³/h

What’s the difference between CFM and m³/h?
CFM stands for Cubic Feet per Minute and measures the volume of air that moves each minute. It’s mostly used in the U.S. and Canada. On the flip side, m³/h or Cubic Meters per Hour measures air volume per hour and is common in Europe and other parts of the world.

Unit Where It’s Used
CFM (Cubic Feet/Min) U.S., Canada
m³/h (Cubic Meters/Hour) Europe, Global

When should you use each? If you’re working with American systems like HVAC units, you’ll likely see CFM. If you’re handling international specs, you’ll run into m³/h.

So, if you know your flow rate in CFM and want to switch to m³/h, multiply it by 1.699. For the reverse, divide your m³/h by 1.699 to get the CFM.

Conversion Formula
CFM to m³/h CFM × 1.699
m³/h to CFM m³/h × 0.5886

For example, if you have 400 CFM, multiplying by 1.699 gives you 679.6 m³/h.

Practical Examples

Now that you’ve got the formula, let’s see how it works in real life. Imagine you’re dealing with a ventilation system that’s rated at 600 CFM. How do you convert that to m³/h?

Example 1  
Flow rate (CFM) 600 CFM
Converted to m³/h 1019.4 m³/h

Now, let’s flip it around. If you’re working with an air purifier that has a flow rate of 1000 m³/h, what’s the CFM?

Example 2  
Flow rate (m³/h) 1000 m³/h
Converted to CFM 588.6 CFM

See how easy it is? Whether you’re working with air conditioners or fans, this conversion helps you understand airflow no matter the unit.

Doing math in your head can get tiring, right? That’s why we’ve made it even easier for you. You can use our built-in calculator to convert between CFM and m³/h in seconds. Just enter your value, click a button, and you’ll have the result instantly.

Conversion Action
CFM to m³/h Enter CFM and get m³/h
m³/h to CFM Enter m³/h and get CFM

No need to worry about making mistakes. Let the calculator do the heavy lifting for you!

Frequently Asked Questions

Q: What’s the difference between CFM and m³/h?
A: CFM measures how much air moves in a minute, while m³/h measures it per hour. CFM is used in the U.S., and m³/h is common in Europe.

Q: How do I convert CFM to m³/h?
A: Just multiply your CFM by 1.699. For example, 500 CFM × 1.699 equals 849.5 m³/h.

Q: How do I convert m³/h to CFM?
A: Divide your m³/h by 1.699. So, if you have 1500 m³/h, divide it by 1.699 to get 882.87 CFM.

Q: Why do I need to convert between CFM and m³/h?
A: You might work with international equipment or need to compare specs. Converting helps you understand airflow no matter the unit.


Conversion Table from cmh to cfm

Following is a detailed conversion table.

cmh cfm
1 0.588578
2 1.177156
3 1.765734
4 2.354312
5 2.942890
6 3.531468
7 4.120046
8 4.708624
9 5.297202
10 5.885780
11 6.474358
12 7.062936
13 7.651514
14 8.240092
15 8.828670
16 9.417248
17 10.005826
18 10.594404
19 11.182982
20 11.771560
21 12.360138
22 12.948716
23 13.537294
24 14.125872
25 14.714450
26 15.303028
27 15.891606
28 16.480184
29 17.068762
30 17.657340
31 18.245918
32 18.834496
33 19.423074
34 20.011652
35 20.600230
36 21.188808
37 21.777386
38 22.365964
39 22.954542
40 23.543120
41 24.131698
42 24.720276
43 25.308854
44 25.897432
45 26.486010
46 27.074588
47 27.663166
48 28.251744
49 28.840322
50 29.428900
51 30.017478
52 30.606056
53 31.194634
54 31.783212
55 32.371790
56 32.960368
57 33.548946
58 34.137524
59 34.726102
60 35.314680
61 35.903258
62 36.491836
63 37.080414
64 37.668992
65 38.257570
66 38.846148
67 39.434726
68 40.023304
69 40.611882
70 41.200460
71 41.789038
72 42.377616
73 42.966194
74 43.554772
75 44.143350
76 44.731928
77 45.320506
78 45.909084
79 46.497662
80 47.086240
81 47.674818
82 48.263396
83 48.851974
84 49.440552
85 50.029130
86 50.617708
87 51.206286
88 51.794864
89 52.383442
90 52.972020
91 53.560598
92 54.149176
93 54.737754
94 55.326332
95 55.914910
96 56.503488
97 57.092066
98 57.680644
99 58.269222
100 58.857800

I hope you found our tool and guide useful. Thank you for using our tool.

 

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