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Unit Conversion Calculator

 

Convert common engineering and manufacturing units—length, weight, pressure, energy, and temperature. Type in either box; the other updates instantly. Great for quick checks before you place or finalize an order.

LengthInches ↔ Millimeters WeightPounds ↔ Kilograms PressureMPa ↔ PSI ↔ KSI TemperatureFahrenheit ↔ Celsius

Tip: Keep your dimensions in the same unit family for accurate results. For exact specs and tolerances, our team is happy to double-check your calculations.

Conversion Calculator

Type in either box—values update automatically. Results are approximate.

Inches to Millimeters ▸
=

1 in = 25.4 mm

Millimeter to Inches ▸
=

1 mm ≈ 0.0393701 in

Pounds to Kilograms ▸
=

1 lb = 0.45359237 kg

Kilograms to Pounds ▸
=

1 kg = 2.20462262185 lb

Metric Tons to Pounds ▸
=

1 t (metric) = 2204.62262185 lb

Metric Tons to (US) Tons ▸
=

1 t (metric) = 1.1023113109 short tons (US)

Fahrenheit to Celsius ▸
=

°C = (°F − 32) × 5/9

Celsius to Fahrenheit ▸
=

°F = (°C × 9/5) + 32

ft·lbs to Joules ▸
=

1 ft·lbf = 1.3558179483314 J

MPa to PSI ▸
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1 MPa = 145.03773773 psi

PSI to MPa ▸
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1 psi = 0.006894757293 MPa

MPa to KSI ▸
=

1 MPa = 0.14503773773 ksi

KSI to MPa ▸
=

1 ksi = 6.894757293168 MPa

Make the Most of Your Results

  • For drawings, stay consistent with in/mm and lb/kg across your specs.
  • When converting pressure, confirm whether your print calls for psi, MPa, or ksi.
  • Temperatures on material certs are usually in °C; convert to °F for shop instructions if needed.
  • Need exact freight weights? Use our Metal Weight Calculator after converting dimensions.
Are these conversions exact?

They’re mathematically exact for unit changes (and rounded to practical decimals). Final part weight and tolerances still depend on mill specs and processing.

Can IMS help if my print mixes units?

Yes—send us your drawing and we’ll confirm the correct units before quoting.

What if I need parts processed to size?

We offer flatbed laser, waterjet, Hi-Def plasma, and tube laser services to take your parts from print to production.

Next Steps

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