Physics

Universe Expansion Calculator

Estimate the Hubble time (age of the universe) from the Hubble constant.

Calculated Output

Hubble time (billion years) 13.968

Formula: t = 1 ÷ H₀

Step-by-Step Breakdown

1. Values used:

2. Hubble constant = 70 km/s/Mpc

4. Hubble time = 13.968billion years

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The math behind it

Hubble time = 1 ÷ H₀, converting the units to years. It assumes a constant expansion rate.

H₀ = 70 km/s/Mpc → about 14 billion years.

Is it the true age?

It's an estimate; the actual age (~13.8 Gyr) accounts for changing expansion.