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metrisch/metric-US.html

Metric units already (widely) used in the US

Physical quantityUnitSymbolIn other S.I. unitsIn S.I. base units
timesecondss
powerwattWJ/skg m2s−3
electrical currentamp, ampereAA
electrical tension, voltagevoltVJ s−1 A−1kg m2s-3A−1
electrical resistanceohmΩJ s−1 A−2kg m2s−3A−2
body mass index, BMIΒΜΙkg/m2kg m-2
optical power (lens strength)diopterm-1
frequency, pitchhertzHzs-1
equivalent dosesievertSvJ/kgm2s-2
luminous flux (light output)lumenlmcd srcd
wavelengthnanometernm10-9 m
torquenewton meterNmkg m2 s-2
distanceklickkm103 m