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Weight Converter: Maund, Seer, Chatak to kg

ওজন রূপান্তর: মণ, সের, ছটাক থেকে কেজি

Convert মণ, সের, ছটাক and তোলা to kilograms, grams and pounds and back, with both the 40 kg market মণ and the traditional 37.32 kg মণ.

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Enter a weight, choose its unit, then select Convert.

How many kg is 1 maund: two kinds of মণ

  • Market মণ = 40 kg. Markets across Bangladesh, for rice, paddy, onions and more, use this. 2 মণ = 80 kg, and 100 kg = 2.5 মণ.
  • Old-scale মণ = 40 সের = 37.32 kg. This traditional scale is built on the tola and still appears in old documents and maths books.

Example: 100 kg

  1. In market মণ: 100 ÷ 40 = 2.5 মণ.
  2. On the old scale: 100 ÷ 37.32 = 2.68 মণ, or 2 মণ 27 সের 2.71 ছটাক.
  3. In pounds: 100 ÷ 0.4536 = 220.46 lb.

The old-scale units

UnitEqualsIn grams
1 tola (তোলা)180 grains11.66 g
1 chatak (ছটাক)5 tola58.32 g
1 seer (সের)16 chatak = 80 tola933.10 g
1 maund (মণ)40 seer37.32 kg

The tola was fixed in 1833 at 180 grains (11.6638 g), and the other units are multiples of it. A bhori of gold is the same weight as a tola, so for gold use the Gold Price & Bhori Calculator.

A few things about weights in markets

  • Some markets used to take extra weight per মণ (ঢলন). At Baneshwar in Rajshahi a মণ of mangoes was counted as 46–48 kg; in 2020 traders there agreed to use 40 kg.
  • Old units can vary by area, as land units do; for land, use the Land Area Calculator.

How to use the calculator

  1. Enter the weight. Bangla digits work.
  2. Choose its unit: market মণ, old-scale মণ, seer, chatak, tola, kg, gram or pound.
  3. Select Convert to see kg, market মণ, the old-scale মণ-সের-ছটাক and a table of every unit.

Sources

Checked on 1 November 2026.

Frequently asked questions

How many kg is 1 maund (মণ)?

In Bangladesh’s markets 1 মণ is 40 kg, so 2 মণ of rice is 80 kg. On the old (traditional) scale, 1 মণ = 40 সের = 37.32 kg, which you may still meet in old documents and maths books.

How many grams is 1 seer (সের)?

On the traditional scale, 1 সের = 80 তোলা = 933.10 g, a little under 1 kg. 40 সের make 1 traditional মণ.

How many grams is 1 chatak (ছটাক)?

1 ছটাক = 5 তোলা = 58.32 g on the traditional scale, and 16 ছটাক make 1 সের.

How many grams is 1 tola (তোলা)?

1 তোলা = 11.6638 g, fixed in 1833 as 180 grains. It is the same weight as the bhori used for gold; for gold prices use the Gold Calculator.

How many maund is 100 kg?

2.5 market মণ (100 ÷ 40). On the traditional scale it is 2.68 মণ, or 2 মণ 27 সের 2.71 ছটাক.

How many pounds is 1 maund?

A 40 kg market মণ is 88.18 lb. The traditional মণ is exactly 82 2/7 lb (82.29 lb).

Some markets weigh more than 40 kg for a মণ. Why?

Some markets used to take extra weight per মণ (ঢলন), for example for mangoes at Baneshwar, Rajshahi; in 2020 traders there agreed to use 40 kg. Always agree the weight in kg before you buy or sell.

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