galileo [Gal] Unit Converter

Definition of galileo [Gal] unit

The galileo (Gal) is a unit of acceleration in the centimetre–gram–second system, equal to one centimetre per second squared (1 Gal = 1 cm/s² = 0.01 m/s²). It is commonly used to express variations in Earth's gravity.

History of galileo [Gal] unit

The unit is named after Galileo Galilei (1564–1642), the Italian astronomer and physicist whose experiments on falling bodies helped establish the foundations of classical mechanics. The galileo emerged from the centimetre–gram–second (CGS) system, developed in the nineteenth century, and became a practical unit for measuring gravitational acceleration. Although the International System of Units later adopted the metre per second squared, the galileo remained valuable in geophysics, especially after sensitive gravimeters made small regional variations in Earth’s gravity measurable with exceptional precision today.

Applications of galileo [Gal] unit

Galileos are used mainly in geodesy, seismology, and geophysics to report gravitational acceleration and its local changes. Gravimeter surveys may map underground density contrasts, monitor volcanic or tectonic activity, and support mineral and groundwater exploration. The unit also appears in engineering specifications, earthquake records, and measurements of vehicle, machinery, or structural vibration when accelerations are relatively small.

Complete list of galileo [Gal] unit conversion