Surface Tension Converter - Convert N/m, dyn/cm, mN/m & More Units
Result:
1 N/m = 1000 dyn/cm
How Surface Tension Conversion Works
Input Value
Enter surface tension value
Select Units
Choose from and to units
Convert
Apply conversion formula
Surface Tension Formulas
Basic Formula:
γ = F/L
Where γ = surface tension, F = force, L = length
Energy Formula:
γ = dE/dA
Where E = surface energy, A = surface area
Young-Laplace Equation:
ΔP = γ(1/R₁ + 1/R₂)
For curved interfaces with radii R₁ and R₂
Capillary Rise:
h = 2γcosθ/(ρgr)
Height of liquid rise in capillary tube
Surface Tension Conversion Table
| N/m | dyn/cm | mN/m | J/m² | lbf/ft | gf/cm |
|---|---|---|---|---|---|
| 0.001 | 1.0 | 1.0 | 0.001 | 0.000069 | 0.102 |
| 0.005 | 5.0 | 5.0 | 0.005 | 0.000343 | 0.510 |
| 0.01 | 10.0 | 10.0 | 0.01 | 0.000685 | 1.020 |
| 0.02 | 20.0 | 20.0 | 0.02 | 0.001370 | 2.039 |
| 0.05 | 50.0 | 50.0 | 0.05 | 0.003426 | 5.099 |
| 0.072 | 72.0 | 72.0 | 0.072 | 0.004934 | 7.342 |
| 0.1 | 100.0 | 100.0 | 0.1 | 0.006852 | 10.197 |
| 0.2 | 200.0 | 200.0 | 0.2 | 0.013704 | 20.394 |
| 0.5 | 500.0 | 500.0 | 0.5 | 0.034261 | 50.986 |
| 1 | 1000.0 | 1000.0 | 1 | 0.068522 | 101.971 |
| 2 | 2000.0 | 2000.0 | 2 | 0.137044 | 203.942 |
| 5 | 5000.0 | 5000.0 | 5 | 0.342609 | 509.856 |
| 10 | 10000.0 | 10000.0 | 10 | 0.685218 | 1019.711 |
| 20 | 20000.0 | 20000.0 | 20 | 1.370436 | 2039.422 |
| 50 | 50000.0 | 50000.0 | 50 | 3.426089 | 5098.555 |
Surface Tension Units Progression Chart
0.01 N/m
0.05 N/m
0.1 N/m
0.5 N/m
1 N/m
2 N/m
Practice Problems
Problem 1:
Convert 0.072 N/m (water) to dyn/cm
Solution: 0.072 ÷ 0.001 = 72 dyn/cm
Problem 2:
Convert 500 dyn/cm to N/m
Solution: 500 × 0.001 = 0.5 N/m
Problem 3:
Convert 25 mN/m to J/m²
Solution: 25 × 0.001 = 0.025 J/m²
Problem 4:
Convert 0.1 lbf/ft to N/m
Solution: 0.1 × 14.5939 = 1.459 N/m
Problem 5:
Convert 10 gf/cm to mN/m
Solution: (10 × 0.0098067) ÷ 0.001 = 98.067 mN/m
Daily Uses of Surface Tension
Water droplets form spherical shapes due to surface tension
Soap reduces surface tension for better cleaning action
Insects walk on water using surface tension forces
Capillary action in plants transports water upward
Inkjet printers control droplet formation using surface tension