Processing...

`v = H \times d`

Enter a value for all fields

The **Hubble's Law** calculator computes the recessional velocity of a galaxy (**v**) based on the Hubble Constant (**H**) and the distance to the galaxy (**d**).

**INSTRUCTION:** Choose units and enter the following:

- (
**H**) The Hubble Constant is the velocity per mega-parsec (Usually in the range of 70 km/s or 71 km/s per megaparsec.) - (
**d**) This is the distance to the galaxy.

**Velocity of Recession (v):** The calculator returns the velocity in meters per second. However, this can be automatically converted to other velocity units via the pull-down menu.

- 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