12 calculators in this category
Convert light years to kilometers, AU, and parsecs.
Calculate escape velocity: v = √(2GM/r).
Calculate black hole event horizon: rs = 2GM/c².
Calculate recession velocity: v = H₀ × d.
Calculate star luminosity: L = 4πR²σT⁴.
Calculate orbital period: T² = 4π²a³ / (GM).
Calculate cosmological redshift: z = (λ_obs - λ_em) / λ_em.
Calculate angular diameter: δ = 2 × arctan(d / 2D).
Calculate tidal force: Ft = 2GMR / d³.
Calculate radiated power: P = 4πR²σT⁴.
Calculate peak wavelength: λmax = b / T.
Convert parsecs to light years, AU, and kilometers.