Conversion Tools
Use our examples below to convert pressure, flow, force or heat.
Convert various units of pressure using the below table:
For example, If you would like to know what the equivalent of 1 BAR is in Inch Hg., you would go to the ‘BAR’ row (brown) and then match it up with the Inch ‘Hg’ column (yellow). 1 BAR = 29.5300 Inch Hg.
| From / To | PSI | Kg / cm2 | BAR | Pascal | mm Hg | Inch Hg | Inch H2O | cm water |
| PSI | 1 | 0.0703 | 0.0689 | 6894.7573 | 51.7149 | 2.0360 | 27.7076 | 70.3089 |
| Kg / cm2 | 14.2223 | 1 | 0.9807 | 9.8067 E+04 | 735.5592 | 28.9590 | 394.0946 | 1000.0275 |
| BAR | 14.5038 | 1.0197 | 1 | 1.000 E+05 | 750.0617 | 29.5300 | 401.8647 | 1019.7443 |
| Pascal | 0.0001 | 1.020 E-05 | 1.000 E-05 | 1 | 7.501 E-03 | 2.953 E-04 | 4.019 E-03 | 1.020 E-02 |
| mm Hg | 0.0193 | 0.0013 | 0.0013 | 133.3224 | 1 | 0.0394 | 0.5358 | 1.3595 |
| Inch Hg | 0.4912 | 0.0339 | 0.0339 | 3386.3882 | 25.4000 | 1 | 13.6087 | 34.5325 |
| Inch H2O | 0.0361 | 0.0025 | 0.0025 | 248.8400 | 1.8665 | 0.0735 | 1 | 2.5375 |
| cm water | 0.0142 | 0.0010 | 0.0010 | 98.06.38 | 0.7355 | 0.0290 | 0.3941 | 1 |
Convert various units of flow using the table below:
For example, if you would like to know what the equivalent of 1 cubic feet per minute (CFM) is in liters per minute (L/Min), you would find the “Cubic Feet per Min” row (brown) and then match it up with the “Liters per Min” column (yellow)
1 Cubic Feet per Min (CFM) = 28.3168 Litres per Min (L/Min)
| From / To | Cubic Feet per Min. | Cubic Meter per Min. | Gallons per Min. | Litres per Min. |
| Cubic Feet per Min. | 1 | 0.0283 | 7.4805 | 28.3168 |
| Cubic Meter per Min. | 35.3147 | 1 | 264.1721 | 1000 |
| Gallons per Min. | 0.1337 | 0.0038 | 1 | 3.7854 |
| Litres per Min. | 0.0353 | 0.001 | 0.2642 | 1 |
Convert various units of flow using the table below:
For example, If Suzie would like to know what the equivalent of 1 Ounce (oz) is in Pounds (lbs). She would look for the ‘Ounce’ row (brown) and then match it up with the ‘Pound’ column (yellow).
1 Ounce (oz) = 0.0625 Pounds (lbs)
| From / To | Pound | Ounce | Kilogram |
| Pound | 1 | 16 | 0.4536 |
| Ounce | 35.3147 | 1 | 0.0283 |
| Kilogram | 2.2046 | 35.27396195 | 1 |
Convert various units of pressure using the table below:
For example, if you would like to know what the equivalent of 1 WATT is in BTU/min, you would find the “Watt” row (brown) and then match it up with the “BTU/Min” column (yellow).
1 Watt = 0.0569 BTU/Min.
| From / To | BTU / Hr. | BTU / Min. | Ton (Refrigeration) | Kilocalorie / Sec. | Watt |
| BTU / Hr. | 1 | 0.0167 | 8.33E-05 | 7.00E-05 | 0.2928 |
| BTU / Min. | 60 | 1 | 0.005 | 0.0042 | 17.5686 |
| Ton (Refrigeration) | 12000 | 238.0992 | 1 | 0.8400 | 3.514E+03 |
| Kilocalorie / Sec. | 1.429E+04 | 200 | 1.1905 | 1 | 4.183E+03 |
| Watt | 3.4152 | 0.0569 | 2.846E-04 | 2.391E-04 | 1 |
Below is an example demonstrating how you can easily calculate the air consumption at different inlet pressures. If you need assistance, call us at +1-705-770-4455 or click here to email an Application Engineer.
EXAMPLE: A Model 7504 Vortex Tube consumes 4 SCFM @ 100 PSIG (113 SLPM @ 6.89 BAR). To calculate the airflow with an inlet pressure of 60 PSIG (4.1369 BAR), follow the below steps:
1 Atmosphere (ATM) = 14.7 (PSI)
1 (SCFM) = 28.3168 (SLPM)
1 (PSI) = .0689 (BAR)
STEP 1: Determine the ratio of absolute inlet pressures.
| English | Metric |
| 60 (PSIG) + 14.7 = 74.7 100 (PSIG) + 14.7 = 114.7 74.7 divided by 114.7 = 0.6512 is the Ratio |
4.1369 (BAR) + 1.0135 = 5.1504 6.8948 (BAR) + 1.0135 = 7.9083 5.1504 divided by 7.9083 = 0.6512 is the Ratio |
STEP 2: Multiply the above Ratio by the known factor (4 SCFM).
| English | Metric |
| 4 (SCFM) x 0.6512 = 2.6048 SCFM Therefore Model 7504 Vortex Tube operating at 60 PSIG will consume just 2.6048 SCFM. |
113 (SLPM) x 0.6512 = 73.5856 Therefore Model 7504 Vortex Tube operating at 4.1369 BAR will consume just 73.585 SLPM. |
