How do I simulate an elevator drop?

Open this page and use the live Moment of Inertia tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive an elevator drop from your own measurements.

Use case · powered by Moment of Inertia

Moment of Inertia for an elevator drop

Simulate an elevator drop live in your browser. This runs the real Moment of Inertia solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Moment of InertiaLive

rotational mass & the parallel-axis theorem

Controls

Shape

Presets

Mass (kg)

Size R or L (m)

Axis offset d (m)

Moment of inertia is rotational mass: how hard it is to spin an object. Mass farther from the axis counts more (∝ r²). The parallel-axis theorem adds md² when the axis moves off the center of mass.

▶ Run in Python

Data Inspector

I about center0.0900 kg·m²

Parallel-axis term0.0000 kg·m²

Total I0.0900 kg·m²

Governing equation

I = 0.500 M R^{2} + M d^{2} = 0.0900 + 0.0000 = 0.0900 kg \cdot m^{2}

Reading this result: The axis runs through the center of mass, so there is no parallel-axis penalty — this is the smallest moment of inertia this body can have.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Moment of Inertia tool models an elevator drop with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Moment of Inertia

Moment of Inertia for a projectile from a cannon Moment of Inertia for a bouncing ball Moment of Inertia for a pendulum clock Moment of Inertia for a car braking Moment of Inertia for a roller-coaster loop Moment of Inertia for a satellite orbit Moment of Inertia for a mass on a spring Moment of Inertia for a skydiver's free fall

Other ways to simulate an elevator drop

Particle / N-Body for an elevator drop Heat & Wave Fields for an elevator drop GPU Compute (WebGPU) for an elevator drop WebGPU Fluid for an elevator drop GPU N-Body for an elevator drop GPU PDE Solver for an elevator drop

Frequently asked questions

How do I simulate an elevator drop?: Open this page and use the live Moment of Inertia tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive an elevator drop from your own measurements.