Persian units of measurement Ancient Persian units Length

| Persian_unit | Persian_name | Relation_to_previous_unit | Metric_Value | Imperial_Value_ |
|---|---|---|---|---|
| finger | aiwas |  | ≈ 20 mm | ≈ 0.8 in |
| hand | dva | 5 aiwas | ≈ 100 mm | ≈ 4 in |
| foot | trayas | 3 dva | ≈ 300 mm | ≈ 1 foot |
| four-hands | remen | 4 dva | ≈ 400 mm | ≈ 16 in |
| cubit (five-hands) | pank`a dva | 5 dva | ≈ 500 mm | ≈ 20 in |
| great cubit (six-hands) | (k)swacsh dva | 6 dva | ≈ 600 mm | ≈ 2 ft |
| pace | pank`a | 5 trayas | ≈ 1.5 m | ≈ 5 ft |
| ten-foot | daca trayas | pank`a | ≈ 3 m | ≈ 10 ft |
| hundred-foot | chebel | 8 daca trayas | ≈ 24 m | ≈ 80 ft |