Tidal Force Calculator
Calculate tidal forces, Roche limit, Hill sphere, and tidal locking timescales for celestial bodies.
Inputs
Solar Masses
Solar Masses
AU
Solar Radii
Results
Tidal Acceleration
0.000000002 m/s²
Tidal Force
13,826,206,961,669,026 N
Roche Limit
0 AU
Hill Sphere Radius0.01 AU
Tidal Locking Timescale56,835,384,694,778,550,000,000,000,000,000,000,000 million years
How to Use This Calculator
- Enter Primary Mass (solar masses) — the dominant gravitational body, such as a star.
- Enter Secondary Mass (solar masses) and Secondary Radius (solar radii) — the smaller orbiting body.
- Set Orbital Distance (AU) between the two bodies — reducing this dramatically increases tidal acceleration.
- Read Tidal Acceleration (m/s²) and Tidal Force (N) acting across the secondary's diameter.
- Use Roche Limit (AU), Hill Sphere Radius (AU), and Tidal Locking Timescale (million years) to characterize the system's dynamical state.
Ad Placeholder
Formula
a_tidal = (2GM × r) / d³Related Calculators
Orbital Period Calculator
Calculate orbital period using Kepler's laws. Find orbital velocity, angular velocity, and perihelion/aphelion distances.
Roche Limit Calculator
Calculate Roche limit - the minimum distance a satellite can orbit before being torn apart by tidal forces.
Planetary Transit Calculator
Calculate transit depth, duration, probability, and timing for exoplanet transits.
Ad Placeholder