Popular surface tension conversions
- Newtons per meter to millinewtons per meter1 N/m = 1,000 mN/m
- Newtons per meter to dynes per centimeter1 N/m = 1,000 dyn/cm
- Millinewtons per meter to newtons per meter1 mN/m = 0.001 N/m
- Millinewtons per meter to dynes per centimeter1 mN/m = 1 dyn/cm
- Dynes per centimeter to newtons per meter1 dyn/cm = 0.001 N/m
- Dynes per centimeter to millinewtons per meter1 dyn/cm = 1 mN/m
About surface tension units
Surface tension is force per unit length along a liquid surface (equivalently, energy per unit area). Water at 20 °C has a surface tension of about 72.8 mN/m, numerically the same as 72.8 dyn/cm.
Surface Tension unit reference
| Unit | Symbol | Value in N/m | System |
|---|---|---|---|
| Newton per meter | N/m | 1 N/m | SI |
| Millinewton per meter | mN/m | 0.001 N/m | SI |
| Newton per millimeter | N/mm | 1,000 N/m | SI |
| Dyne per centimeter | dyn/cm | 0.001 N/m | CGS |
| Erg per square centimeter | erg/cm² | 0.001 N/m | CGS |
| Gram-force per centimeter | gf/cm | 0.980665 N/m | Other |
| Kilogram-force per meter | kgf/m | 9.80665 N/m | Other |
| Pound-force per inch | lbf/in | 175.12684 N/m | US customary |
| Pound-force per foot | lbf/ft | 14.593903 N/m | US customary |
Frequently asked questions
What is the SI unit of surface tension?
This converter uses the newton per meter (N/m) as its reference unit; every other unit is defined relative to it.
How many surface tension units can I convert?
9 units are supported here, across SI, CGS, Other, US customary systems. Every pair can be converted in both directions.
Does this surface tension converter work offline?
Yes. Once the page has loaded, every calculation runs locally in your browser — nothing is sent to a server.