Wherever distances need to be specified, such as the distance parameter in the Geo Distance Filter), the default unit if none is specified is the meter. Distances can be specified in other units, such as "1km" or "2mi" (2 miles).
Details
| mi or miles | Mile |
| yd or yards | Yard |
| ft or feet | Feet |
| in or inch | Inch |
| km or kilometers | Kilometer |
| m or meters | Meter |
| cm or centimeters | Centimeter |
| mm or millimeters | Millimeter |
| NM, nmi or nauticalmiles | Nautical mile |
The precision parameter in the Geohash Cell Filter accepts distances with the above units, but if no unit is specified, then the precision is interpreted as the length of the geohash.