Area
Decided: the ager (symbol ag) = 1,000 square paces (1,728 dec), eg a strip 100 × 10 paces ≈ 3,646 m² (dec) = 0.90 acre. Everyday land sizes are fractions of it.
Why: land needs a unit between the square pace and the square iter, and this one lands close to the acre with nearly the same strip shape (the acre is a furlong × a chain, 10:1; this is 12:1). Name: Latin ager, field (as in agriculture). The symbol "ag" also reads as silver (Ag), but land sizes and silver rarely appear in the same sentence.
Advantage: a land unit close to the acre people already picture, in a round number of square paces.
| Ager | m² (dec) | Close to |
|---|---|---|
| 0;3 | 911 | quarter-acre house block (1,012 m²) |
| 0;6 | 1,823 | half acre |
| 1 | 3,646 | acre (4,047 m²) |
| 10 | 43,750 | a 100 × 100 pace square, 4.4 ha |