The formula
yd = m × 1.093613298
Where the factor comes from — each unit by its definition, then its size in SI:
1 m is the SI unit of length.1 yd = 3 × ft = 0.9144 m
Dividing the two SI sizes gives the factor: 1.09361329834 (rounded for display; the underlying ratio is fixed by the definitions). The reverse factor is 0.9144.
Every formula on this site takes lengths in metres. Heights, distances and stopping distances quoted in feet, inches or miles have to be converted first — getting it wrong by a factor of 3.28 is the most common unit slip in homework.
Worked examples
- A sprint track straight: 100 m = 109.361 yd — 100 × 1.093613298 = 109.361
- A marathon (42.195 km): 42,195 m = 46,145 yd — 42,195 × 1.093613298 = 46,145
- A tall doorway (6 ft): 1.8288 m = 2 yd — 1.8288 × 1.093613298 = 2
- A school ruler (30 cm): 0.3 m = 0.328084 yd — 0.3 × 1.093613298 = 0.328084
Frequently asked questions
How many yards is 1 m?
1 m = 1.09361329834 yd.
How do I convert yards back to metres?
Divide by 1.09361329834 — or multiply by 0.9144: 1 yd = 0.9144 m.