49 Square Kilometer = 18.918919 Square Mile
49 km² = 18.918919 mi²
Conversion Formula
1 km² = 0.38610039 mi²
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Radiation
55 Rem
0.55 Sievert
rem → Sv
Inductance
6 Kilohenry
6,000.00 Henry
kH → H
Magnetic field
5 Oersted
397.8875 Ampere per meter
Oe → A/m
Textile
42 Worsted count
21.090476 Tex
WorC → tex
Weight
12 Grain
777.58692 Milligram
gr → mg
Photography
64 Foot lambert
219.2832 Candela per square meter
fL → cd/m²