Question: 20 bigha is how many acres?
Answer: In Himachal Pradesh, five bigha is equal to one acre (0.0809 hectare). In Punjab and Haryana, 4.8 bigha is equal to one acre, each bigha is 4 kanaals, each kanaal is 20 marlas, each marla is 9 square karam, each square karam is 30.25 sq ft (5.5 X 5.5 ft), each karam is 5.5 feet. See measurement of land in Punjab.