Marla and Kanal Converter — the district decides the answer

Convert marla, kanal, sarsahi and ghumao against a karam length you choose, because Punjab recognises four of them and a marla is a different size under each.

Every other marla calculator gives you one number. The Punjab government publishes four.

A marla is nine square karam, and the karam is a local length. The Office of the Chief Town Planner, Punjab, Memo No. 1050-67-CTP(Pb)/SP-135 of 6 March 1986 lists four officially recognised karams — 66, 60, 57.5 and 54 inches. A "5 marla plot" is 151.25, 125, 114.8 or 101.25 square yards depending on which district it sits in. That is a 49% spread between the largest and the smallest, on the same words in the same sentence.

So this converter will not answer until you tell it which measure applies. There is no default, because a default here is a guess about someone's land.

Square metres	—
Square feet	—
Square yards	—
Acres	—
Marla	—
Kanal · marla · sarsahi	—
One marla here	—
Marla per acre	—

Urban plots in Haryana are a different thing with the same name. HSVP (formerly HUDA) sells plots in categories called "10 Marla" and "1 Kanal", but the area is fixed in square metres on the allotment letter and does not come from the karam ladder at all. In HSVP's own e‑auction list of 1 January 2023, "10 Marla" plots run 206.8–230 m² — a modal 209.00 m², which is exactly 250 square yards — while ten revenue marla at the 66‑inch karam would be 252.93 m². Apply the revenue constant to an HSVP plot and you overstate it by about 20%. Read the allotment letter, not a converter.

Pakistan. Pre‑Partition revenue records share the 66‑inch karam, so this page converts those. The 225‑square‑foot marla used by DHA, Bahria Town, LDA and CDA housing schemes is a different convention, and we have not found a Pakistani primary authority defining it. Rather than convert it from a number we cannot source, this page declines to. That figure coincides with the 60‑inch karam marla, which may or may not be the reason for it.

Karam schedule: Office of the Chief Town Planner, Punjab, Memo No. 1050‑67‑CTP(Pb)/SP‑135, 6 March 1986. Corroborating: Punjab Settlement Manual (Douie) para 243 — "The kadams in use vary from 54 to 66 inches… The variations have been reduced, but not abolished"; Punjab Land Records Manual, 3rd ed. 2004, pp. 183–185. Ladder relations (1 marla = 9 sarsahi, 1 kanal = 20 marla, 1 ghumao = 8 kanal) and the acre at 43,560 square feet are definitional. Metric conversion uses the international foot, 1 ft = 0.3048 m exactly, so one marla at the 66‑inch karam is 158080329/6250000 m² = 25.29285264 m² exactly. Haryana is treated as 66‑inch for revenue records because Haryana publishes only that ladder and issues no district schedule of alternatives — if a Haryana district in fact sits on a different karam, this page is wrong for it and we would want to know. Jammu & Kashmir is deliberately absent: the figure its own revenue page prints is marked approximate and is self‑inconsistent, so there is nothing here we would stand behind.