How do I simulate a hazmat spill?

Open this page and use the live Radio Range 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 a hazmat spill from your own measurements.

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Radio Range for a hazmat spill

Simulate a hazmat spill live in your browser. This runs the real Radio Range 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

Radio Range / Link BudgetLive

VHF/UHF horizon + path loss

Estimated usable range

9.7mi

Controls

Presets

Base antenna (ft)

Portable height (ft)

Power (W)

Frequency (MHz)

Rx sensitivity (dBm)

Combines the radio horizon (1.23·(√h₁+√h₂), feet→miles) with a free-space link budget (EIRP minus path loss vs receiver sensitivity). Actual range depends on terrain, foliage, and buildings — treat this as a best-case planning estimate.

▶ Run in Python

Data Inspector

Radio horizon9.7 mi

Link budget147 dB

Limited byline-of-sight

Governing equation

FSPL = 20 lo g_{10} (\frac{4 π d}{λ}) = 147 dB (d = 9.7 mi, f = 155 MHz)

Reading this result: Range is capped by the horizon at 9.7 mi — raising the base antenna helps more than adding power here.

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

or unlock everything with Pro →

About this simulation

The full Radio Range tool models a hazmat spill 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 Radio Range

Radio Range for a house fire Radio Range for a wildfire Radio Range for a mass-casualty scene Radio Range for a flood rescue Radio Range for a building collapse Radio Range for a chemical leak Radio Range for a search-and-rescue grid Radio Range for a triage station

Other ways to simulate a hazmat spill

Wildfire Spread for a hazmat spill Hazmat Plume for a hazmat spill Building Evacuation for a hazmat spill START Triage for a hazmat spill Fire Hose Hydraulics for a hazmat spill Skid-to-Stop Speed for a hazmat spill

Frequently asked questions

How do I simulate a hazmat spill?: Open this page and use the live Radio Range 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 a hazmat spill from your own measurements.