Gravitation Δ — Gravity & Orbits Calculator

Calculator for Newtonian gravity, surface gravity, orbital speed and escape velocity with simple distance unit switching.

Select a formula, enter values and press “Calculate”.

Uses Newtonian gravitation with SI units: mass in kilograms, distance in meters (with km conversion), force in newtons, acceleration in m/s², speed in m/s. Internal constant: G ≈ 6.674·10⁻¹¹ N·m²/kg².

About Gravitation Δ

Gravitation Δ is an online calculator for classical gravity and orbital mechanics. It uses Newton’s law of universal gravitation to calculate gravitational force between two masses, surface gravity of planets, weight near the surface, orbital speed and escape velocity. Distance can be entered in meters or kilometers, with automatic conversion to SI units.

What You Can Calculate

  • Gravitational force: F = G·m₁·m₂ / r²
  • Surface gravity: g = G·M / r²
  • Weight near surface: F = m · g
  • Orbital speed: v = √(G·M / r)
  • Escape velocity: vₑ = √(2·G·M / r)

Uses SI units and Newtonian mechanics, suitable for school and introductory astronomy tasks. Designed for fast, anonymous usage with a clean DELTOOLLAB interface.

SEO Description

Online gravity and orbits calculator: gravitational force, surface gravity, weight, orbital speed and escape velocity. Uses Newton’s law of gravitation with SI units. Fast and free physics tool by DELTOOLLAB.

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