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## Planck Constants | ||
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## Characteristic | ## Planck-constant | ## Notes | ||
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## Symbol | h | |||

## Metric (SI) Equivalent | ||||

## Another Metric (SI) Equivalent with More Basic Units | ||||

## Standard Uncertainty | ||||

## Metric (SI) Dimensions | length2 × mass × time-1 |

## Characteristic | ## Planck-constant-over-2-pi |
## Notes | ||
---|---|---|---|---|

## Symbol | ħ |
Use "hbar" for our conversion calculators. | ||

## Other Names | natural-unit-of-action, atomic-unit-of-action, natural-unit-of-angular-momentum, atomic-unit-of-angular-momentum | |||

## Metric (SI) Equivalent | ||||

## Another Metric (SI) Equivalent with More Basic Units | ||||

## Standard Uncertainty | ||||

## Metric (SI) Dimensions | length2 × mass × time-1 |