Converters
12
Guide
How to convert angle
Enter an angle and choose the source and target units. Degrees, radians, gradians, arcminutes, arcseconds, turns, and angular mils are converted through radians.
Angle uses radians as the base unit: result = amount x source radian factor / target radian factor.
Examples
Angle conversion examples
Degrees to radians
180 deg
equals
3.14159265359 rad
Radians to degrees
3.14159265359 rad
equals
180 deg
Arcminutes to degrees
60 '
equals
1 deg
Angle
All conversions
Radian to Degree
Conversion library
Supported categories
Temperature
Celsius, Fahrenheit, and Kelvin with proper offset formulas.
deg C
deg F
K
Volume
Liters, cubic meters, and common US kitchen measures.
L
mL
m3
tsp
tbsp
fl oz
+4
Distance
Metric, imperial, nautical, and everyday distance units.
m
km
cm
mm
in
ft
+3
Data Byte
Bits, bytes, SI storage units, and binary storage units.
B
bit
KB
MB
GB
TB
+4
Mass
Grams, kilograms, tons, pounds, ounces, and stones.
kg
g
mg
t
lb
oz
+1
Area
Surface units from square millimeters to square miles.
m2
km2
cm2
mm2
ha
ac
+3
Speed
Meters per second, kilometers per hour, miles per hour, knots, and feet per second.
m/s
km/h
mph
kn
ft/s
Time
Exact time units from milliseconds to weeks.
s
ms
min
h
d
wk
Frequency
Hertz, kilohertz, megahertz, gigahertz, and revolutions per minute.
Hz
kHz
MHz
GHz
THz
rpm
Pressure
Pascals, bar, atmosphere, PSI, and torr.
Pa
kPa
bar
atm
psi
Torr
Energy
Joules, calories, watt-hours, kilowatt-hours, and BTU.
J
kJ
cal
kcal
Wh
kWh
+1
Angle
Degrees, radians, gradians, arcminutes, arcseconds, turns, and angular mils.
rad
deg
grad
'
''
turn
+1
Popular conversions
Angle links
Conversion table
1 Degree equals
| Unit | Value |
|---|---|
| Radian rad | 0.0174532925199 |
| Gradian grad | 1.11111111111 |
| Minute of arc ' | 60 |
| Second of arc '' | 3600 |
| Turn turn | 0.00277777777778 |
| Angular mil mil | 17.7777777778 |
Formula model
Base-unit conversion
Pi-based constants are stored with high precision for practical geometry, navigation, and engineering use.
base = amount * factor + offset
result = (base - targetOffset) / targetFactor
result = (base - targetOffset) / targetFactor
Scope
Fixed conversions first
Currency, crypto, and market-rate conversions need live exchange data, so they are kept separate from the fixed scientific units in this build.
Exact units
Lengths, masses, storage, time, and most derived units.
Offset units
Celsius, Fahrenheit, and Kelvin conversions.
FAQ
Angle converter questions
How many radians are in a full turn?
A full turn is 2*pi radians.
Are arcminutes and arcseconds supported?
Yes. Both minute of arc and second of arc are included.