It's about as big as Wales.
In other words, the size of Wales is 1.0407 times 19,920,700 dunams.(a.k.a. Cymru) (total area)
The area of the country of Wales (in the United Kingdom) is 20,732,000 dunams. More than 764,700 dunams, or about 4% of the country's land area, is made up of the fifty-plus islands in the Irish and Celtic Seas off the coast of the Welsh mainland.
It's about one-and-one-tenth times as big as Lake Ontario.
In other words, 19,920,700 dunams is 1.051 times the size of Lake Ontario, and the size of Lake Ontario is 0.95150 times that amount.(a.k.a. Lac Ontario) (surface area)
The smallest of North America's Great Lakes (by surface area), Lake Ontario has a total area of 18,960,000 dunams. It borders the cities of Toronto, Ontario, Canada and Rochester, New York.
It's about nine-tenths as big as New Jersey.
In other words, 19,920,700 dunams is 0.8819110 times the size of New Jersey, and the size of New Jersey is 1.13390 times that amount.(United States)
The "Garden State," New Jersey measures 22,588,100 dunams in total area. The Garden State Parkway — the busiest toll highway in the country — runs the 277 km (172 mi) length of New Jersey's coast.
It's about four-fifths as big as New Hampshire.
In other words, 19,920,700 dunams is 0.8226190 times the size of New Hampshire, and the size of New Hampshire is 1.215630 times that amount.(United States)
The "Granite State," New Hampshire measures 24,216,200 dunams in total area. New Hampshire's western border with Vermont is marked by the Connecticut River — the longest river in New England with a length of 655 km (407 mi).
It's about four-fifths as big as Vermont.
It's about three-fourths as big as Lake Erie.
In other words, 19,920,700 dunams is 0.7750 times the size of Lake Erie, and the size of Lake Erie is 1.290 times that amount.(a.k.a. Lac &ri&) (surface area)
The fourth largest of North America's Great Lakes and the thirteenth largest lake in the world (by surface area), Lake Erie has a total area of 25,700,000 dunams. It borders the cities of Cleveland, Ohio and Toledo, Ohio.
It's about three-fourths as big as Massachusetts.
In other words, 19,920,700 dunams is 0.72872940 times the size of Massachusetts, and the size of Massachusetts is 1.3722510 times that amount.(a.k.a. The Commonwealth of Massachusetts) (United States)
The "Bay State," Massachusetts measures 27,336,210 dunams. The peninsula of Cape Cod, which stretches into the Atlantic near from the southern tip of the state measures approximately 1,030,000 dunams.