Unit Conversion for Chemical Engineers

 

     UNIT CONVERSION

(Click here for Unit Convertor)

1. Length

• 1km = 0.62137 miles                                

                = 0.53996 nautical miles               

• 1 m = 1.9361 yd

               = 3.28084 ft      

• 1 cm = 0.393701 in

• 1 miles = 63,360,000 mil

• 1 ft = 12 in

2. Area

• 1 km² = 0.3861 mile²

• 1 Hectare = 10,000 m²

                            = 2.47105 acre

                         = 0.003861 mile²

• 1 m² = 10.7639 ft²

                = 1.19599 yd²

• 1 cm² = 0.155 in²

3. Volume

• 1 m³ = 35.3147 ft³

                = 6.2898 barrels (oil)

 
                = 1.30795 yd³

 

• 1 cm³ = 0.061024 in³

• 1 m³ = 219.9692 UK(imperial) gallons

                = 264.172052 US gallons

• 1 m³ = 1000 liters

• 1 kl = 0.00081071 acre.ft

  4. Mass

• 1 kg = 2.20462 lb(pound)

• 1 t = 0.98421 Ton(UK)

             = 1.10231 Ton(short)(US)

 

             = 2204.623 lb(pound)

• 1 g = 15.4324 grain

• 1 oz(ounces) = 0.0625 lb(pound) 

 

  5. Density

• 1 g/cm³ = 62.42795 lb/ft³

                      = 8.345403 lb/US gal

 
                      = 10.0224 lb/UK gal

 
                      = 0.03612728 lb/in³

• 1 kg/l = 70156.8 grain/UK gal

                  = 58417.82 grain/US gal

 

   6. Specific Volume

• 1 m³/kg = 16.01848 ft³/lb

                     = 99.7765 UK gal/lb

 
                     = 119.8265 US gal/lb

  7. Force 

• 1 kgf = 2.20467 lbf

                 = 9.80665 N

• 1 N = 10⁵ dyn

   8. Pressure

• 1 bar = 14.50377 lbf/in²

• 1 kgf/cm² = 14.22334 lbf/ in²

                         = 98.0665 page

• 1 atm = 14.69595 lbf/in²

• 1 torr ( mm Hg ) = 0.0393701 in Hg

• 1 bar = 10⁵ Pa = 10⁵ N/m²

• 1 atm(Standard atmosphere)=1.03323 ata(Technical atmosphere)
  

• 1 mm Hg = 133.322 Pa

  9. Energy ( work & Heat )

• 1 cal (thermochemical) = 4.184 J

• 1 cal (International steam table) =4.1868 J

• 1 cal (at 15° C) = 4.1855 J

• 1 BTU (British Thermal Unit) = 1055.056 J

• 1 (Celsius Heat Unit) = 1.8 BTU

• 1 therm = 10⁵ BTU

• 1 J = 9.478172 × (10^(-4)) BTU= 0.737562 lb.ft

• 1 kwh = 3412.12 BTU = 2655224 lbf.ft

• 1 kcal = 3.9638821 BTU

  10. Power

• 1 kw = 1.34102 hp

• 1 (m.kgf)/s = 7.233 (ft.lbf)/s

• 1 metric hp = 0.98632 hp

                            = 0.7355 kw

• 1 J = 10^(-7) erg

• 1 metric hp = 75 (m.kgf)/a

• 1 British hp = 550 (ft.lbf)/s

  11. Heat Capacity

• 1 J/(kg.dec C) = 2.38846 × 10^(-4) BTU/(lb.deg F)

• 1 Kcal/(kg.deg C) = 1 BTU/(lb.deg F) 

 

  12. Temperature

• °C = 5/9 (°F - 32)

•  °F = 9/8 ° C + 32

•   K = °C + 273.15

•  °R = °F + 459.67