+**Curvature** is a measure of how much a [curve](/wiki/curve) or surface deviates from being flat or straight. It quantifies the bending of an object, fundamental to understanding [geometry](/wiki/geometry) and the intrinsic nature of space.
+## See also
+- [Radius](/wiki/radius)
+- [Space](/wiki/space)
+- [Calculus](/wiki/calculus)