Orbital Period Table: Orbital period by Orbit radius
Reference table of orbital period for Orbital Period across a range of orbit radius values — exact, engine-computed figures you can read off at a glance.
Orbital Period Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Orbital period
5,828.73
- In minutes
- 97.15
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Orbital Period Calculator
The Orbital Period Calculator works out your orbital period, along with 1 related figure in an instant. Enter orbit radius and central body mass and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the orbit radius.
- Enter the central body mass.
- Read off your orbital period, together with in minutes — the calculator updates automatically, with no button to press.
Formula
The Orbital Period Calculator uses the formula:
Orbital period = 2 × 3.141592653589793 × √((Orbit radius)^(3) ÷ (6.674e-11 × Central body mass))
Worked example
For example, with orbit radius of 7,000,000 m and central body mass of 5,972,000,000,000,000,327,155,712 kg, the orbital period is 5,828.73.
| Orbit radius | 7,000,000 m |
|---|---|
| Central body mass | 5,972,000,000,000,000,327,155,712 kg |
| Orbital period | 5,828.73 |
|---|---|
| In minutes | 97.15 |
Results are estimates for educational use, not professional advice.
Key terms explained
- Radius
- The distance from the centre of a circle or sphere to its edge.
Frequently asked questions
Use T = 2π√(r³ ÷ GM). A 7,000 km orbit around Earth takes roughly 97 minutes.
The gravitational constant, about 6.674×10⁻¹¹ N·m²/kg², built into the formula.
At a few hundred kilometres altitude, the radius and Earth's mass give a period near 90 minutes.
No. For a small satellite around a large body, only the central mass and radius matter.
Enter the orbit radius. Enter the central body mass. Read off your orbital period, together with in minutes — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Orbital Period: Formula, Steps & Examples
Learn how to calculate Orbital Period — the formula explained step by step, with worked examples and a free calculator to check your answer.