Workshop conversions
Hydraulic unit and hose dash-size converter
Convert common length and pressure units, or translate a hose dash number into its nominal inch and millimetre size.
Length and pressure converter
Conversions use exact SI definitions and are calculated in your browser.
25.4 mm1 in × 25.4 = 25.4 mm
Hose dash-size lookup
A hose dash number represents a nominal size in sixteenths of an inch.
- Dash
- -04
- Nominal inch size
- 1/4 in
- Nominal metric size
- 6.35 mm
Important
Dash size is nominal. It does not by itself identify the actual hose bore, fitting thread, sealing face, or interchangeability. Confirm the manufacturer specification.
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