Gamut strings are gauged by millimeter diameter, but there are other popular gauging systems for measuring strings. The below information can be used to easily convert other gauges:
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To change from millimeter to Pirastro-meter (PM), divide the millimeter number by .05
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To change from Pirastro-meter to millimeter, multiply the pirazzi-meter number by .05
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To change from millimeter to thousandths of an inch, divide the millimeter number by 25.4
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To change from thousandths of an inch to millimeter, multiply the thousandths number by 25.4
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For example, a 14.5 Pirastro-meter violin a-2 gut string × .05 = 0.725 mm.
| CONVERSION | FORMULA | EXAMPLE |
|---|---|---|
| Millimeter → Pirastro-meter | millimeter ÷ 0.05 | 0.725 mm ÷ 0.05 = 14.5 PM |
| Pirastro-meter → Millimeter | Pirastro-meter × 0.05 | 14.5 PM × 0.05 = 0.725 mm |
| Millimeter → Thousandths of an inch | millimeter ÷ 25.4 | 0.725 mm ÷ 25.4 = 0.0286 in (≈ 28.6 thou) |
| Thousandths of an inch → Millimeter | thousandths × 25.4 | 28.6 thou × 25.4 = 0.725 mm |