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    Conversion of Units

    Uploaded by

    Henrick Igle
    This document provides conversion factors for various units of measurement across many categories including length, area, volume, force, angle, time, pressure, energy, power, temperature, and properties of air and water. It lists equivalencies between units like meters and feet, pounds and kilograms, degrees Celsius and Fahrenheit, and others. These conversion factors allow for translating between different systems of units used in science, engineering and everyday applications.

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    Conversion of Units

    Uploaded by

    Henrick Igle
    42 views5 pages
    This document provides conversion factors for various units of measurement across many categories including length, area, volume, force, angle, time, pressure, energy, power, temperature, and properties of air and water. It lists equivalencies between units like meters and feet, pounds and kilograms, degrees Celsius and Fahrenheit, and others. These conversion factors allow for translating between different systems of units used in science, engineering and everyday applications.

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    This document provides conversion factors for various units of measurement across many categories including length, area, volume, force, angle, time, pressure, energy, power, temperature, and properties of air and water. It lists equivalencies between units like meters and feet, pounds and kilograms, degrees Celsius and Fahrenheit, and others. These conversion factors allow for translating between different systems of units used in science, engineering and everyday applications.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    42 views5 pages

    Conversion of Units

    Uploaded by

    Henrick Igle
    This document provides conversion factors for various units of measurement across many categories including length, area, volume, force, angle, time, pressure, energy, power, temperature, and properties of air and water. It lists equivalencies between units like meters and feet, pounds and kilograms, degrees Celsius and Fahrenheit, and others. These conversion factors allow for translating between different systems of units used in science, engineering and everyday applications.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 5

    CONVERSION OF UNITS

    LENGTH

    1ft = 12 inches

    1 yd = 3 ft

    1m = 3.281 ft

    1m = 1000 mm

    1m = 100 cm

    1m = 39.37 inches

    1 in = 2.54 cm

    1 in = 25.4 mm

    1 mile = 5280 ft

    1 nautical mile = 6080 ft

    1 km = 1000 m

    AREA

    1 𝑓𝑡 2 = 144 𝑖𝑛2

    1 𝑚2 = 10,000 𝑐𝑚2

    1 𝑚2 = 10.76 𝑓𝑡 2

    1 𝑚2 = 1.195 𝑦𝑑2

    1 ha = 10,000 𝑚2

    1 acre = 4046.8 𝑚2

    VOLUME

    1 𝑓𝑡 3 = 1728 𝑖𝑛3

    1 𝑓𝑡 3 = 7.482 gal

    1 𝑚3 = 1000 li

    1 gal = 3.785 li

    1 𝑚3 = 35.31 𝑓𝑡 3
    FORCE

    1 kg = 2.205 lbs

    1 kg = 1000 grams

    1 kg = 0.00981 KN

    1 kg = 9.81 N

    1 lb = 16 oz

    1 ton = 2000 lb

    1 Mton = 1000 kg

    1 KN = 1000 N

    1N = 100,000 dynes

    1 slug = 32.174 lb

    1 slug = 14.59 kg

    1 slug = 143.14 N

    1 kip = 1000 lbs

    ANGLE

    πrad = 180˚

    2πrad = 1 rev

    2πrad = 360˚

    1 rev = 100 grad

    60 min = 1 deg

    TIME

    1 min = 60 sec

    1 hr = 3600 sec

    1 hr = 60 min

    1 day = 24 hr

    1 year = 8760hrs
    PRESSURE

    1 atm = 101.325 kPa

    1 atm = 14.7 psi

    1 atm = 1.033 kg/𝑐𝑚2

    1 atm = 760 mmHg

    1 atm = 29.92 inHg

    1 bar = 100 kpa

    1 Kpa = 1 KN/𝑚2

    1 Pa = 1 N/𝑚2

    1 Mpa = 1 N/𝑚𝑚2

    1 Mpa = 1000 kPa

    1 ksi = 1000 psi

    1 torr = 1 mm Hg

    1 torr = 133.32 Pascal

    ENERGY

    1 Btu = 778 ft-lb

    1 Btu = 1.055 Kj

    1 Btu = 0.252 Kcal

    1 Kcal = 4.187 KJ

    1 KJ = 1 Kn-M

    1 Kj = 1000 N-m

    1 Joule = 1 N-m

    1 erg = 1 dyne-cm

    POWER

    1 Kw = 1 Kj/s

    1 Hp = 0.746 kw

    1 Hp = 746 watts
    1 Hp = 550 ft-lb/sec

    1 Hp = 33,000 ft-lb/min

    1 Hp = 42.2 Btu/min

    1 Hp = 2545 Btu/hr

    1 Mhp = 0.736 Kw

    1 Bo. Hp = 35,322 Kj/hr

    TEMPERATURE

    ˚C = 5/9 (˚F – 32)

    ˚F = 9/5 ˚C + 32

    K = ˚C + 273

    R = ˚F + 460

    Temperature Difference

    Δ˚C = 5/9 (Δ˚F)

    Δ˚F = 9/5 (Δ˚C)

    Δ˚C = Δ˚K

    Δ˚F = Δ˚R

    AIR PROPERTIES

    𝑐𝑝 = 0.24 BTU/lb-R

    𝑐𝑝 = 0.24 Kcal/ kg-K

    𝑐𝑝 = 1.0 KJ/kg-K

    𝑐𝑣 = 0.171 BTU/lb-R

    𝑐𝑣 = 0.171 Kcal/ kg-K

    𝑐𝑣 = 0.716 KJ/kg-K

    R = 53.3 ft-lb/lb-R

    R = 0.287 KJ/kg-K

    R = 8.314/M , KJ/kg
    k = 1.4 (for cold air)

    k = 1.3 (for hot air)

    WATER PROPERTIES

    Density = 1 kg/li

    Density = 1000 kg/ 𝑚3

    Density = 9.81 KN/𝑚3

    Density = 62.4 lb/𝑓𝑡 3

    𝑐𝑝 = 4.187 KJ/ kg-K

    𝑐𝑝 = 1 BTU/ lb-R

    L = 335 KJ/kg

    L = 144 Btu/lb

    For ice:

    𝑐𝑝 = 2.09 KJ/kg-K

    𝑐𝑝 = 0.5 Btu/lb-R

    L = 335 KJ/kg

    L = 144 Btu/lb

    For steam:

    𝑐𝑝 = 2 KJ/kg-K

    𝑐𝑝 = 0.49 Btu/lb-R

    L = 2257 KJ/kg

    L = 970 Btu/lb

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