Surface Tension Converter
Convert between 8 surface tension units instantly. Enter a value, pick your units and get the result with the formula, a full conversion table and worked examples.
72 dyn/cm in all surface tension units
Updates live as you type. Click a row to set it as the target unit.
| Unit | Symbol | Value |
|---|---|---|
| Millinewton per metre | mN/m | 72 |
| Dyne per centimetre | dyn/cm | 72 |
| Erg per sq centimetre | erg/cm² | 72 |
| Gram force per centimetre | gf/cm | 0.0734196 |
| Newton per metre | N/m | 0.072 |
| Kilogram force per metre | kgf/m | 0.00734196 |
| Pound force per foot | lbf/ft | 0.00493357 |
| Pound force per inch | lbf/in | 0.000411131 |
How to Convert Surface Tension Units
Surface tension is the force per unit length acting along a liquid surface. The SI unit is newton per metre (N/m); values are usually given in mN/m or dyn/cm, which are numerically equal (water is about 72 mN/m at 25 °C).
Every unit on this page is stored as a fixed factor relative to one reference unit, the newton per metre (N/m). Converting is a two step multiply and divide:
- Multiply your value by the factor of the source unit to get the value in N/m.
- Divide that result by the factor of the target unit.
Dyne per centimetre to Newton per metre conversion table
| Dyne per centimetre (dyn/cm) | Newton per metre (N/m) |
|---|---|
| 1 dyn/cm | 0.001 N/m |
| 2 dyn/cm | 0.002 N/m |
| 3 dyn/cm | 0.003 N/m |
| 4 dyn/cm | 0.004 N/m |
| 5 dyn/cm | 0.005 N/m |
| 6 dyn/cm | 0.006 N/m |
| 7 dyn/cm | 0.007 N/m |
| 8 dyn/cm | 0.008 N/m |
| 9 dyn/cm | 0.009 N/m |
| 10 dyn/cm | 0.01 N/m |
| 15 dyn/cm | 0.015 N/m |
| 20 dyn/cm | 0.02 N/m |
| 25 dyn/cm | 0.025 N/m |
| 30 dyn/cm | 0.03 N/m |
| 40 dyn/cm | 0.04 N/m |
| 50 dyn/cm | 0.05 N/m |
| 75 dyn/cm | 0.075 N/m |
| 100 dyn/cm | 0.1 N/m |
| 250 dyn/cm | 0.25 N/m |
| 500 dyn/cm | 0.5 N/m |
| 1,000 dyn/cm | 1 N/m |
Surface Tension Units and Conversion Factors
Value of one unit expressed in N/m.
| Unit | Symbol | In N/m |
|---|---|---|
| Millinewton per metre | mN/m | 0.001 |
| Dyne per centimetre | dyn/cm | 0.001 |
| Erg per sq centimetre | erg/cm² | 0.001 |
| Gram force per centimetre | gf/cm | 0.980665 |
| Newton per metre | N/m | 1 |
| Kilogram force per metre | kgf/m | 9.80665 |
| Pound force per foot | lbf/ft | 14.59390294 |
| Pound force per inch | lbf/in | 175.1268352 |
Frequently Asked Questions
What is the SI unit of surface tension?
The SI unit of surface tension is the newton per metre (N/m). Surface tension is the force per unit length acting along a liquid surface.
How do I convert dyn/cm to mN/m?
To convert dyne per centimetre (dyn/cm) to millinewton per metre (mN/m), multiply the value in dyn/cm by 1. For example, 1 dyn/cm = 1 mN/m.
How do I convert N/m to dyn/cm?
To convert newton per metre (N/m) to dyne per centimetre (dyn/cm), multiply the value in N/m by 1,000. For example, 1 N/m = 1,000 dyn/cm.
How do I convert lbf/in to N/m?
To convert pound force per inch (lbf/in) to newton per metre (N/m), multiply the value in lbf/in by 175.127. For example, 1 lbf/in = 175.127 N/m.
Can I see a value in every surface tension unit at once?
Yes. Enter a value and choose the source unit; the "all units" table below the converter instantly lists the equivalent in all 8 supported units. Click any row to make it the target unit.
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