THE MOTHER LODE Nº 07 · Everyday Math All numbers
Everyday Math
3 BILLION

Your heart is a 3-billion-beat machine

Also inside: a billion seconds is 31 years, but a million seconds is a long weekend. Big numbers, made touchable.

The Math

Multiply it out. An average heart beats about 70 times a minute, and the minutes are not in short supply:

70 × 60 × 24 × 365.25 × 80 ≈ 2.95 billion

Call it 3 billion beats in a long life — no spares, no reorders. The same arithmetic makes a billion seconds 31.7 years, while a million seconds is just 11.6 days.

Try this — count your beats

Want to run your own version of this number? Thousands of free tools live in the CalculateMine tools library.

Stupid, but true — The Body

This is a sample story from the Mother Lode proof edition — the standfirst above and the math are the story so far. The full-length version arrives with the first regular edition.

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Put 23 strangers in a room. Two of them share a birthday. →

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THE MOTHER LODE — proof edition. This story is a demonstration article; the mathematics in it is real and checkable.