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Metric Imperial Units Conversion Factors

Metric Imperial Units Conversion Factors

With the continuing use of Imperial units in many areas these days, there is still a necessity to convert from metric to imperial units, or in the reverse direction from Imperial to metric units.

These conversions are easy provided that the conversion factors are available.

The table or chart below provides the factors for converting from metric units to Imperial units, or in the reverse direction from Imperial to metric units.


Metric / SI / Imperial conversion factors


Metric QuantityImperial QuantityImperial QuantityMetric Quantity
1 centimetre0.394 inches1 inch2.54 centimetres
1 millimetre0.0394 inches1 foot0.3048metres
1 metre1.0936 yards1 yard0.914 metres
1 metre3.281 feet1 foot0.3048 metres
1 decimetre0.3281 feet1 foot3.048 decimetres>
1 kilometre0.6214 miles1 mile1.6093 kilometres
1 kilometre0.539 nautical miles1 nautical mile1.8532 kilometres

Surface area SI conversions


Metric QuantityImperial QuantityImperial QuantityMetric Quantity
1 sq centimetre0.1550 Sq inches1 sq inch6.5416 sq centimetres
1 sq metre1.196 sq yards1 sq yard0.8361 sq metres
1 sq centimetre0.001067 sq feet1 sq foot929.03 sq centimetres
1 sq km0.3861 sq miles1 sq mile2.590 sq km
1 hectare2.4711 acres1 acre0.4047 sq hectares


Watch the video: Unit Conversion u0026 Significant Figures: Crash Course Chemistry #2 (December 2021).