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The Uncertainty Calculator (Heisenberg's Principle) will calculate the:

- One of uncertainties among that of particle's position and momentum when the other uncertainty is known
- One of uncertainties among that of particle's energy and time interval in which it possesses that energy when the other uncertainty is known

**Calculation Parameters:** Medium of propagation is assumed as vacuum

The uncertainty of particle's position or momentum when the other uncertainty is known is |

The uncertainty of particle's energy or time interval in which it possesses this energy when the other uncertainty is known is |

Uncertainty of particle's position or momentum when the other uncertainty is known calculation |
---|

∆x ∙ ∆p ≈ ℏ ∙ ≈ |

Uncertainty of particle's energy or time interval in which it possesses this energy when the other uncertainty is known calculation |

∆E ∙ ∆τ ≈ ℏ ∙ ≈ |

Uncertainty Calculator Input Values |

Reduced Planck Constant (ℏ) J · s [Joule times second] |

Uncertainty of particle's position (Δx) m [metre] |

Uncertainty of particle's momentum (Δp) kg·m/s [kilogram times metre per second] |

Uncertainty of particle's energy (ΔE) J [Joule] |

Uncertainty of time interval (Δτ) s [second] |

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∆x ∙ ∆p ≈ ℏ

∆E ∙ ∆τ ≈ ℏ

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