Square Yard to Acre (yd² to ac)
Result
0.00020661157 Acre
Formula
ac = yd² × 0.00020661157
1 yd² = 0.00020661157 ac, and 1 ac = 4,840 yd².
Area factors are the square of the length factor: 1 ft = 0.3048 m, so 1 ft² = 0.3048² = 0.09290304 m². The acre is 43,560 ft² (4,046.8564224 m²) and the hectare 10,000 m².
Worked examples
- 1 yd² × 0.00020661157 = 0.00020661157 ac
- 10 yd² × 0.00020661157 = 0.0020661157 ac
- 100 yd² × 0.00020661157 = 0.020661157 ac
Common mistakes
- Do not apply a length factor to an area: 100 m² is 1,076.39 ft², not 328 ft² (100 × 3.28).
- A plot described as "20 × 30 ft" is 600 ft²; convert each side to metres first or convert the area afterwards — never just one side.
Square Yard to Acre table
| Square Yard (yd²) | Acre (ac) |
|---|---|
| 1 | 0.00020661157 |
| 2 | 0.00041322314 |
| 5 | 0.0010330579 |
| 10 | 0.0020661157 |
| 20 | 0.0041322314 |
| 50 | 0.010330579 |
| 100 | 0.020661157 |
| 1,000 | 0.20661157 |
The units
- Square Yard (yd²)
- 1 Square Yard = 0.83612736 Square Meter.
- Acre (ac)
- 43,560 square feet, exactly 4,046.8564224 m². 640 acres make a square mile.
Sources for these factors
- Handbook 44 (2024), Appendix C: General Tables of Units of Measurement — NIST
- Guide for the Use of the International System of Units (SP 811), Appendix B: conversion factors — NIST
Last reviewed against these sources. An automated check recomputes every factor from its definition on each build. How we check accuracy