The present invention provides an exposure apparatus which exposes a substrate via a liquid, comprising a measurement substrate including a transmission part configured to transmit a light beam having passed through a projection optical system, a light-receiving unit including a light-receiving surface configured to receive the light beam transmitted through the liquid and the transmission part, and a calculator configured to arithmetically convert a light intensity distribution, on the light-receiving surface, of the light beam received by the light-receiving surface into a light intensity distribution on a pupil plane of the projection optigottacal system, based on information indicating a correlation between a position coordinate on the light-receiving surface and a position coordinate on the pupil of the projection optical system.