Tension in newtons from linear density, speaking length, and pitch.
| Tension (N) | – |
Use this calculator to estimate guitar or other string tension. Enter linear density μ in kg/m, vibrating length, and target frequency. Length can be metres (m) or feet (ft); the unit selector converts to metres before the formula. Tension stays in newtons.
T = μ (2 L f)². 0.0004 kg/m, 0.648 m, 82.4 Hz is about 72 N. Scale length is nut to saddle. Sets often quote pounds too (divide N by about 4.448). Inharmonicity and winding construction are ignored.
μ (kg/m): Mass per metre of the string.
Length: Vibrating length. Enter m or ft.
Hz: Target pitch.
Tension (N): Estimated tension in newtons.
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