How many townships are in 1 acre?

1 acre equals 0.0000434028 townships, using the exact defined conversion factor rather than an estimate.

How do I convert acre to township?

Multiply the acre value by 0.00004340277778. The converter above does this instantly to whatever precision you set.

How do I convert township back to acre?

Use the reverse factor: 1 township equals 23,040 acres. You can also use the swap control in the converter above to flip the direction instantly.

Township (twp) is a unit of area.

Is the acre to township conversion exact?

Yes. The international acre is defined as exactly 4,046.8564224 square meters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.

Acres to Townships Converter

Q: What is a acre?

Acre (ac) measures area. The international acre is defined as exactly 4,046.8564224 square meters. It is classified as a US/imperial customary unit.

About Converting Acres to Townships

Comparing Acre and Township is common in agriculture and real estate, where US land is typically measured in acres and most of the rest of the world uses hectares. Acre is most often used for measuring farmland, ranch, and rural property size in the us.

Formula

townships = acres × 0.0000434027777778

This factor comes from each unit's defined relationship to the category's base unit: 1 acre equals 4046.8564224 base units, and 1 township equals 93239571.9721 base units, so dividing one by the other gives the direct acre-to-township factor of 0.0000434027777778.

Simple example

1 ac × 0.00004340277778 = 0.0000434028 twp

1 acre = 0.0000434028 townships.

Real-world example

10 ac × 0.00004340277778 = 0.0004340278 twp

10 acres = 0.0004340278 townships.

Conversion table

Acre (ac)	Township (twp)
1 ac	0.0000434028 twp
5 ac	0.0002170139 twp
10 ac	0.0004340278 twp
25 ac	0.0010850694 twp
50 ac	0.0021701389 twp
100 ac	0.0043402778 twp

Reverse conversion: Township to Acre

0.0000434028 twp × 23040 = 1.000000512 ac

0.0000434028 townships = 1.000000512 acres.

acres = townships × 23040

For a page dedicated to this direction, see Township to Acre.

Understanding the Acre

Acre (ac) measures area. The international acre is defined as exactly 4,046.8564224 square meters. It is classified as a US/imperial customary unit.

Where it's used: United States United Kingdom (informal/historical, land registry legacy) Countries with historical British land-survey systems

International acre vs. US survey acre. The US survey acre, based on the US survey foot, differs from the international acre by about two parts per million. The US retired the survey foot/acre for federal use at the end of 2022.

Uses of the Acre today

Measuring farmland, ranch, and rural property size in the US
Real estate listings and zoning for land parcels
Forestry and land-management reporting

History of the Acre

The acre originated in medieval England as a practical field measurement: the area a yoke of oxen could plow in one day, roughly a furlong (660 ft) long by a chain (66 ft) wide, giving the 43,560 square feet still used today.

Edward I's 1305 statute formalized this figure. In 1959, the same International Yard and Pound Agreement that fixed the pound also fixed the international acre at exactly 4,046.8564224 m², though the US separately retained a slightly different 'US survey acre' for some legacy land records until it was phased out in 2023.

Historical origin. Acre was not the invention of a single named person; it developed through the process described above.

Understanding the Township (twp)

A survey township is 36 square miles.

Acre — sources

NIST — US Survey Foot: Revised Unit Conversion Factors — Documents the 1959 international acre definition and the 2022/2023 survey-foot retirement.

Acres to Townships Converter — ac to twp

Area Converter