✦ Measurements

Land Unit Converter

Convert land measurements and compare asking prices across plots.

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Land area *Measured in0 to 1,000,000; up to 6 decimal places.

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Results update as you type — no calculate button needed.

Quick examples

Your result

10 Perches → Square feet (ft²)

2,722.5Square feet (ft²)

Common equivalents

Perches: 10
Square feet (ft²): 2,722.5
Square metres (m²): 252.9285264
Acres: 0.0625

View all 8 area units

Perches: 10
Roods: 0.25
Acres: 0.0625
Square feet (ft²): 2,722.5
Square metres (m²): 252.9285264
Square yards (yd²): 302.5
Hectares: 0.02529285264
Cents (1/100 acre): 6.25

Acres · Roods · Perches

0Acres (whole)0Roods (0–3)10Perches (0 to under 40)

Compare land asking pricesUse the extent above for Plot A. Enter your own asking price; compare a second listing on the same price basis.

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Plot A

The current converted area is used for Plot A.

Asking price (LKR)

Price quoted as

Asking-price arithmetic only. Location, access, title, surveying, taxes, legal fees and development costs are not included. A lower unit price does not establish better value.

How the calculation works

1 perch = 272.25 square feet = 25.29285264 square metres. 1 rood = 40 perches; 1 acre = 4 roods = 160 perches. One hectare is 10,000 m²; one cent is 1/100 acre. Results use exact unit factors, then display rounding.

Area conversion is not a land survey. Check the actual extent, boundaries and legal description with a licensed surveyor.

Reference and verification

NIST publishes the exact international-foot square-perch and acre factors. Sri Lanka Survey Department is the appropriate authority for cadastral records.

NIST — exact area conversion factors ↗Sri Lanka Survey Department ↗

Your numbers are calculated in this browser. No API, account or location access is required.

Frequently asked questions

How many square feet are in a perch?

Exactly 272.25 ft². A square perch is 16.5 feet by 16.5 feet.

How many perches are in an acre?

160 perches, or four roods of 40 perches each.

Can I use this instead of a survey plan?

No. This converts units only and does not verify measured land extent, boundaries or title.

What does A–R–P mean on a deed?

A–R–P stands for acres, roods and perches. For example, 1 acre, 2 roods and 5 perches is 245 perches in total.