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Convert paper sizes (Letter vs A4) and inches to centimeters.
Length & Distance
Imperial → Metric
Inches → Centimeters
1 inch = 2.54 cm
Feet → Meters
1 foot = 0.3048 m
Feet & Inches → Centimeters
(ft × 30.48) + (in × 2.54) = cm
Yards → Meters
1 yard = 0.9144 m
Miles → Kilometers
1 mile = 1.609344 km
Metric → Imperial
Millimeters → Inches
1 mm = 0.03937 in
Centimeters → Inches
1 cm = 0.3937 in
Meters → Feet
1 m = 3.28084 ft
Meters → Yards
1 m = 1.09361 yd
Kilometers → Miles
1 km = 0.621371 mi
Centimeters → Feet
1 cm = 0.0328084 ft
Millimeters → Feet
1 mm = 0.00328084 ft
Data Storage
Imperial → Metric
Kibibytes → Mebibytes
1 KiB = 0.0009765625 MiB
Mebibytes → Gibibytes
1 MiB = 0.0009765625 GiB
Gibibytes → Tebibytes
1 GiB = 0.0009765625 TiB
Gibibytes → Gigabytes
1 GiB = 1.073742 GB
Mebibytes → Megabytes
1 MiB = 1.048576 MB
Metric → Imperial
Bytes → Kilobytes
1 B = 0.001 KB
Kilobytes → Megabytes
1 KB = 0.001 MB
Megabytes → Gigabytes
1 MB = 0.001 GB
Gigabytes → Terabytes
1 GB = 0.001 TB
Bytes → Kibibytes
1 B = 0.0009765625 KiB
Gigabytes → Gibibytes
1 GB = 0.931323 GiB
Megabytes → Mebibytes
1 MB = 0.953674 MiB
Frequency
Imperial → Metric
Metric → Imperial
Hertz → Kilohertz
1 Hz = 0.001 kHz
Kilohertz → Megahertz
1 kHz = 0.001 MHz
Megahertz → Gigahertz
1 MHz = 0.001 GHz
Kilohertz → Hertz
1 kHz = 1000 Hz
Megahertz → Kilohertz
1 MHz = 1000 kHz
Gigahertz → Megahertz
1 GHz = 1000 MHz
Angle
Imperial → Metric
Degrees → Radians
1° = π/180 rad ≈ 0.0174533 rad
Degrees → Gradians
1° = 1.11111 gon
Metric → Imperial
Radians → Degrees
1 rad = 180/π ≈ 57.29578°
Gradians → Degrees
1 gon = 0.9°
Radians → Gradians
1 rad = 63.662 gon
Gradians → Radians
1 gon = 0.015708 rad