How many grains of rice is 30 feet?
30 feet is roughly 1,306 grains of rice laid end to end.
That's roughly
1,306grains of rice laid end to end
Assuming one grain of rice is about a quarter inch long (7 mm, if you insist).
Also equal to
The math
One grain of rice is about a quarter inch long, or 7 mm in metric. 30 feet is 9.14 m. Divide one by the other:
9.14 m ÷ 0.007 m ≈ 1,306 grains of rice
Yes, we did the math in metric. Someone had to.