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  1. Harmonic mean - Wikipedia

    In mathematics, the harmonic mean is a kind of average, one of the Pythagorean means. It is the most appropriate average for ratios and rates such as speeds, [1][2] and is normally only used for positive …

  2. Harmonic Mean - Math is Fun

    The harmonic mean is: the reciprocal of the average of the reciprocals. Yes, that is a lot of reciprocals! Reciprocal just means 1value.

  3. Harmonic Mean - GeeksforGeeks

    Oct 9, 2025 · The Harmonic Mean (HM) is a type of average used primarily when dealing with rates, ratios, or speeds. It is defined as the reciprocal of the arithmetic mean of the reciprocals of the given …

  4. What Is the Harmonic Mean? - Investopedia

    Jun 26, 2025 · The harmonic mean is a type of numerical average used in investing to average multiples like the price-to-earnings ratio. It treats each value in a series equally.

  5. Harmonic Mean Explained: A Guide to Rates and Ratios

    Nov 26, 2024 · The harmonic mean is a type of average used for rates and ratios, ideal for reciprocal relationships in fields like finance, physics, and data science.

  6. Harmonic Mean Calculator

    Use this harmonic mean calculator to easily calculate the Harmonic mean of a set of numbers. What is a harmonic mean? The harmonic mean (archaic: subcontrary mean) is a specialized average of a set …

  7. Harmonic Mean | Brilliant Math & Science Wiki

    By the QM-AM-GM-HM inequality, the harmonic mean is smaller than either the arithmetic mean or geometric mean and is the smallest of the classical (Pythagorean) means.

  8. Harmonic Mean Definition - BYJU'S

    The Harmonic Mean (HM) is defined as the reciprocal of the average of the reciprocals of the data values.. It is based on all the observations, and it is rigidly defined. Harmonic mean gives less …

  9. Harmonic Mean - algebrica.org

    Oct 25, 2025 · In essence, the harmonic mean describes balance within rate-based or proportional data, offering a precise and unbiased measure whenever the values being averaged represent …

  10. Harmonic Mean -- from Wolfram MathWorld

    Nov 14, 2025 · The harmonic mean is the special case of the power mean and is one of the Pythagorean means. In older literature, it is sometimes called the subcontrary mean.