• Djehngo@lemmy.world
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    2 days ago

    The only metric to imperial conversion I remember is kilometers to miles since it’s pretty close to the golden ratio.

    Even if you don’t remember that the golden ratio is 1.6 and a bit, you can approximate it by using successive terms of the Fibonacci sequence.

    1, 1, 2, 3, 5, 8, 13 …

    So 8 miles is about 13km (actually 12.87)