// multi-utility computation suite · offline · instant · precise
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hobby.guitar-string-tension Calculator
Calculates string tension for a guitar from gauge, scale length, and target tuning, showing the combined tension across all strings. Low tunings with light strings lose tension and become floppy — this shows the minimum gauge needed for a given tuning on a given scale length.
Inputs
Scale Length In
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
Freq Hz
Cycles per second (Hz). Audible sound: 20 Hz – 20 kHz. Make sure units match what the formula expects.
Unit Weight
Body or object weight. For health calculators, usually in kg or lbs.
Results
tension (lbs)
The tensile force or stress — the pulling force that stretches the material. Must stay below the material's tensile strength.
tension (kg)
The tensile force or stress — the pulling force that stretches the material. Must stay below the material's tensile strength.
tension (N)
The tensile force or stress — the pulling force that stretches the material. Must stay below the material's tensile strength.
scale length
The computed linear length.
frequency (E4)
Sample size or count used in the calculation.
T = 4 × UW × L² × f²
Reference formula or conversion factor shown for context.