Light hour to Light second Converter (and vice versa)

Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026

This converter allows you to convert light hours [lh] to light seconds [ls] or light seconds [ls] to light hours [lh]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 light hour [lh] = 3,600 light seconds [ls]1 light second [ls] ≈ 2.778 * 10-4 light hours [lh]

Convert light hours to light seconds

There are two simple ways to convert light hours [lh] to light seconds [ls]. In the first calculation method, the value in light hours [lh] is divided by the rounded conversion factor of 2.778 * 10-4. The second method multiplies the value in light hours [lh] by 3,600.

  • Light seconds [ls] ≈ light hours [lh] ÷ (2.778 * 10-4)
  • Light seconds [ls] = light hours [lh] * 3,600

The calculation method with a rounded conversion value is more suitable for rough conversions from light hours [lh] to light seconds [ls], as the calculation result may contain rounding errors. Therefore, the variant with the exact conversion factor is more suitable.


Convert light seconds to light hours

Converting light seconds [ls] to light hours [lh] is easy and can be done in two ways. The first method involves multiplication, in which the value in light seconds [ls] is multiplied by the rounded conversion factor of 2.778 * 10-4. The second variant is a division. Here, the value in light seconds [ls] is divided by 3,600.

  • Light hours [lh] ≈ light seconds [ls] * 2.778 * 10-4
  • Light hours [lh] = light seconds [ls] ÷ 3,600

The rounded conversion value can cause rounding errors, resulting in inaccurate calculation results. To ensure that the conversion from light seconds [ls] to light hours [lh] produces the most accurate calculation result possible, the conversion should be performed using the exact conversion factor.

Converter

Decimal places

How it's calculated

Factor: 
3,600
Light seconds=Light hours*3,600
Light hours=
Light seconds3,600

To all available units

Light hours

Megaparsecs

Light hours

Parsecs

Light hours

Planck length

Light minutes

Gigaparsecs

Light minutes

Kiloparsecs

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