Distance to Redshift Converter Free Online Distance to Redshift Calculator (ΛCDM Cosmology) Redshift (z) Hubble Constant H₀ (km/s/Mpc) Planck 2018 (67.4 km/s/Mpc) – RecommendedCommon approximate value (70)SH0ES 2022 (73)Planck 2018 precise Calculate Distance About the Distance to Redshift Converter The Distance to Redshift to Distance Converter is an essential online scientific tool that […]
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Cosmic Horizon Calculator Calculate the particle horizon, event horizon, Hubble radius, and comoving distance to the edge of the observable universe using the latest ΛCDM cosmological parameters. Redshift (z) – leave 0 for current particle horizon Hubble constant H₀ (km/s/Mpc) Matter density parameter Ωₘ (today) Dark energy density ΩΛ (today) Calculate Cosmic Horizons
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Event Horizon Radius Calculator Calculate the Schwarzschild Radius (Event Horizon) of a Black Hole Mass of the Object Kilograms (kg)Solar Masses (M☉)Earth Masses (M⊕)Jupiter Masses (MJ) Calculate Event Horizon Radius The Event Horizon Radius (Schwarzschild radius) is: — Event Horizon Radius Calculator is a precise scientific tool that calculates the Schwarzschild radius —
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Particle Horizon Distance Calculator Particle Horizon Distance Calculator is an advanced online cosmology tool that calculates the proper distance to the particle horizon — the maximum distance from which light could have reached us since the Big Bang. This represents the size of our observable universe at any given time. The particle horizon
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Black Hole Shadow Calculator Calculate the Angular Size of a Black Hole Shadow Based on the Schwarzschild metric and the Event Horizon Telescope observations Black Hole Mass (Solar Masses M☉) Distance from Earth (Megaparsecs Mpc) Calculate Black Hole Shadow Size Result: Photon Sphere Diameter: km Apparent Angular Diameter (on sky): μas (microarcseconds) Shadow
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Time Dilation Near Black Hole Calculator Calculate Gravitational Time Dilation (Schwarzschild Metric) Black Hole Mass (in Solar Masses M☉) Radial Distance from Center (in km) Observer Location Near the Black Hole (at given distance)Far Away (at infinity – reference clock) Calculate Time Dilation Time Dilation Factor (τ / t∞): — 1 second near
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Orbital Period Near Black Hole Calculator Calculate the Orbital Period of an Object Near a Black Hole Black Hole Mass Kilograms (kg)Solar Masses (M☉)Million Solar MassesBillion Solar Masses Orbital Radius (in Schwarzschild radii) Stable circular orbits exist only for r ≥ 6 Rs (Innermost Stable Circular Orbit for Schwarzschild black hole) Calculate Orbital
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Photon Orbit Calculator The Photon Orbit Calculator is an advanced online tool that instantly computes the radius of the photon sphere around a black hole using Einstein’s general theory of relativity. The photon sphere — also known as the photon orbit — is the critical boundary where light can orbit a black hole in
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Innermost Stable Circular Orbit Calculator The Innermost Stable Circular Orbit Calculator determines the radius of the innermost stable circular orbit (ISCO) around a black hole using Einstein’s General Theory of Relativity. The ISCO marks the closest distance at which a test particle can maintain a stable circular orbit before spiraling into the black
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Black Hole Accretion Calculator Black Hole Accretion Calculator is a scientifically accurate, free online tool designed to compute key physical parameters of matter falling onto black holes through an accretion disk. This calculator strictly adheres to peer-reviewed general relativistic and astrophysical formulas used by professional researchers worldwide. About the Black Hole Accretion Calculator
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