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Calculate rocket paths, speed, and altitude with our Rocket Trajectory Calculator. Easy, accurate, and perfect for students, hobbyists, and engineers.
If you've ever wondered how rockets fly, curve, and reach orbit, you're not alone. Whether you’re building a science project or dreaming of launching your own rocket, knowing the rocket trajectory is a must.
To make this easy, we developed a Rocket Trajectory Calculator that helps you find how your rocket moves from ground to sky or even into space. It’s based on real science but designed for regular users. No need to be a physicist or programmer. Just enter a few values and get instant, accurate results.
A rocket trajectory is the path a rocket follows after launch. This path depends on many things like the rocket’s speed, how heavy it is, how much fuel it burns, and how air and gravity affect it. Unlike simple objects, a rocket’s mass keeps changing as it burns fuel.
Our trajectory calculator takes all this into account. It simulates real rocket flight from takeoff to space entry. Whether you're launching vertically, following a curved path, or entering orbit, this calculator helps you plan and understand the full flight path.
We created this calculator in three steps so that anyone from students to hobbyists can get results quickly.
This part tracks your rocket’s path as it lifts off. It calculates how high it goes, how fast it travels, and how long the fuel lasts.
Here’s what happens:
The rocket burns fuel and becomes lighter. Air pushes back (this is drag), and gravity tries to pull it down. The engine pushes it up. Our calculator balances all these forces and shows you the result.
Formulas used:
Height change over time: dh/dt = V
Velocity change: dV/dt = -g - (ρ × V × |V| × Cd × A) / (2 × m) + (ṁ × ue) / m
Mass change: dm/dt = -ṁ
These formulas use:
Want to see how fast your rocket could go in space without drag or gravity? This part uses the famous Tsiolkovsky Rocket Equation to show you the rocket’s potential speed in a vacuum.
Formula used:
Δv = ue × ln(m0 / mf)
Where:
You’ll also get mass ratio, fuel used, and specific impulse from this section. It’s great for understanding how far your rocket can go in perfect space conditions.
If your rocket reaches space, it may go into orbit. This section tells you how your rocket moves around Earth or another planet. You’ll get values like current position, orbit height, velocity, and time for one orbit.
Formulas used:
Orbital radius: r = p / (1 + e × cos(ν))
Velocity at radius: v = √[μ × (2/r - 1/a)]
Orbital period: T = 2π × √(a³ / μ)
Here:
This helps you see the full journey from lift-off to stable orbit.
That’s it. No downloads, no complex graphs. It all works in your browser.
The Rocket Trajectory Calculator is simple, fast, and accurate. It combines physics with a friendly interface so that anyone can use it. Whether you’re launching a model rocket or studying orbital mechanics, this tool gives you reliable answers.
You’ll love how easy it is to plan a rocket launch, simulate an orbit, or calculate speed in space. Try it out today and see your rocket fly right from your screen.
It’s made for everyone students, teachers, engineers, and hobbyists.
Just once to load. After that, it runs smoothly.
Yes, it’s mobile-friendly.
No problem. You just enter values and let the tool handle the hard work.
Yes. It uses NASA-style physics and equations used in aerospace engineering.