Basic Units and Conversions
BASIC UNITS & CONVERSIONS 1. FUNDAMENTAL UNITS: •
LENGTH –METRE (m)
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MASS –KILOGRAMS (kg)
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TIME –SECONDS(s)
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ELECTRICAL CURRENT STRENGTH –AMPERE (A) 2. DERIVED UNITS: •
FORCE – MLT-2.
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LINEAR MOMENTUM – MLT-2.
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ANGULAR MOMENTUM – ML2 T-1.
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WORK \ ENERGY =TORQUE – ML2 T-2.
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POWER – ML2 T-3.
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SURFACE TENSION – MT-2.
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VISCOSITY – KINEMATIC – M2 T-1. - DYNAMIC – ML-1 T-1.
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DISCHARGE – M3 T-1.
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SPECIFIC WEIGHT – ML-2 T-2.
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SURFACE TENSION – MT-2.
3. CONVERTIONS: MASS •
1 carat = 0.2 gram.
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1 grain = 0.0648 gram.
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1 ounce = 28.3495 grams.
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1 pound = 453.5924 grams.
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1 stone = 6350.2932 grams.
Compiled By – Raghavendra M.
1
Basic Units and Conversions
LENGTH •
1 foot = 0.3048 meters.
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1 furlong = 201.168 meters.
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1 hectometre = 100 meters.
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1 yard = 0.9144 meters
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1 light year = 9.4605e+012 kilometres.
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1 nautical mile = 1.852 kilometres.
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1 mile = 1.6093 kilometres. TIME
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1 day = 86400 seconds.
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1 day = 1440 minutes. ANGLE
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1 radian = 57.2958 degrees. AREA
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1 acre = 4046.8726 square meters.
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1 hectare = 10000 square meters. VOLUME
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1 litre = 1000 CC.
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1 cup = 0.2366 litres.
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1 gallon = 3.7854 litres.
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1 ounce = 0.02957 litres.
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1 quart = 0.9464 litres.
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1 pint = 0.5 quart.
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1 tablespoon = 3 teaspoon.
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1 barrel = 115.6271 litres.
Compiled By – Raghavendra M.
2
Basic Units and Conversions
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1 bushel = 35.2391 litres. VELOCITY
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1 km/h = 0.2778 m/s.
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1 knot = 0.5144 m/s.
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1 mach = 331.46 m/s. POWER
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1 cal/s = 0.00561 HP.
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1 cal/s = 0.00418 kW.
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1 HP = 0.7456 kW. PRESSURE
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1 atm = 1.01325 bars.
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1 atm = 76 cms of Hg.
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1 atm = 10332.2745 kg/m2.
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1 bar = 100000 Pascal.
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1 bar = 1000000 dynes/cm2.
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1 torr =133.3224 Pascal.
Compiled By – Raghavendra M.
3
Basic Units and Conversions
Compiled By – Raghavendra M.
4