Processing...

`t = 1.0/H`

4.40811E+17

**Hubble Time** is simply the reciprocal of the Hubble Parameter expressed in time units.

**INSTRUCTIONS**: Enter the following:

- (
**H**) Hubble Parameter in units of (km/s)/Mpc

**Hubble Time (t):** The time is returned in seconds. However, this can be automatically converted to compatible units via the pull-down menu.

The formula for Hubble Time is:

t = 1 / H

where:

- t = Hubble Time
- H = Hubble Parameter

The units of the Hubble Parameter are kilometers per second per megaparsec (km/s)/Mpc.

One Mega-Parsec is approximately equal to:

- 30,856,770,000,000,000,000 kilometers
- 19,173,507,963,493,200,000 miles
- 206,264,767,389 astronomical units (ua)
- 3,261,632 light years

- Hubble's Law
- Kepler's 3
^{rd}Law formula T² = (4π • R³)/(G • M) - Small Angle Formula
- Flux and Magnitude formulas
- Telescope formulas
- Mass formulas
- Relative Size Formulas
- Wavelength Formulas
- Luminosity and other Formulas

**Related Astro Calculators:**

- Kepler's 3
^{rd}Law Calc has Kepler's 3^{rd}law solved for each parameter. - Astronomy Calculator contains basic formulas for a college level Introduction to Astronomy
- Exoplanet Calculator contains formulas for studying planets outside of our Solar System.
- Astronomical Distance Calculator provides the distance from the Earth to numerous astronomical bodies (e.g. Sun, Moon, planets, stars, Milky Way's Center and Edge, Andromeda Galaxy)
- Astronomical Distance Travel Time Calculator computes the time to travel to distant parts of space at different velocities.
- Ellipse Calculator
- 3D Vector Calculator:
- Drake Equation Calculator
- Seager Equation Calculator
- Friedman Equation Calculator
- Exoplanet Calculator contains formulas for studying planets outside of our Solar System.
- Astronomical Distance Calculator provides the distance from the Earth to numerous astronomical bodies (e.g. Sun, Moon, planets, stars, Milky Way's Center and Edge, Andromeda Galaxy)
- Astronomical Distance Travel Time Calculator computes the time to travel to distant parts of space at different velocities.
- Radius of Perigee
- Radius of Apogee