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Engineering Unit Converter

mm ↔ inch, kg ↔ lb, bar ↔ psi, °C ↔ °F and NB ↔ NPS ↔ DN pipe sizes.

Length
Weight
Pressure
Temperature
Pipe size
Result

How it is calculated

1 inch = 25.4 mm · 1 kg = 2.20462 lb · 1 bar = 14.5038 psi = 0.1 MPa · °F = °C × 9/5 + 32 · 1 kgf/cm² = 0.980665 bar.

Reference values for quick estimates. For orders and invoices, use the standard and the mill test certificate.

Do this inside your quotations QuoteMitra has pipe and plate weight calculators built in. Weights, rates and GST go straight into a professional quotation PDF. See QuoteMitra
FAQ

Engineering Unit Converter — questions

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10 bar is about 145 psi (1 bar = 14.5038 psi).

NB (nominal bore) is the Indian/British name for the nominal pipe size in millimetres. 25 NB = DN 25 = NPS 1".

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