  The superspace formulation of N=1 conformal supergravity in four dimensions
is demonstrated to be equivalent to the conventional component field approach
based on the superconformal tensor calculus. The detailed correspondence
between two approaches is explicitly given for various quantities;
superconformal gauge fields, curvatures and curvature constraints, general
conformal multiplets and their transformation laws, and so on. In particular,
we carefully analyze the curvature constraints leading to the superconformal
algebra and also the superconformal gauge fixing leading to Poincare
supergravity since they look rather different between two approaches.
