What can visitors do with the embedded Rocket Launch Lab?

They can drag sliders for specific impulse, wet mass, dry mass, payload, thrust-to-weight and drag area, then press Run to fly the ascent. A schematic and a delivered-Δv gauge update live, a split bar shows how gravity, drag and steering losses eat into the ideal Δv, and two plots trace the ascent and the Δv–mass-ratio curve. One-click presets set up realistic launch vehicles.

What does the Rocket Launch Lab teach?

It makes the Tsiolkovsky rocket equation, Δv = vₑ·ln(m₀/m_f), tangible. Students see why Δv depends on exhaust velocity and mass ratio rather than raw thrust, why the last increments of Δv cost so much propellant — the tyranny of the rocket equation — and how gravity, drag and steering losses cut the ideal figure down, which is exactly why rockets stage.

Is embedding the Rocket Launch Lab free?

Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Rocket Launch Lab by LK Forge" credit line that comes with the embed code.

What iframe height should I use, especially on mobile?

The snippet ships with height="1800", which is tall enough that the schematic, sliders, readouts and both plots all fit without clipping. This dashboard-style lab stacks into a single column on a narrow phone, so the tall height keeps everything visible; on a wider page the widget centres within its max-width of 720px.

Where can I embed it — WordPress, Wix, Squarespace, Notion?

Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/rocket/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.

Does the embedded lab track visitors or set cookies?

No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.

Widgets

How to Add a Rocket Launch Lab to Your Website

LK Forge · 4 min read · Updated September 2026

You can add a full rocket launch simulator to any website, blog, or classroom page with a single line of code — free, with no sign-up, no plugin, and no script to install. Visitors set the engine and vehicle, press Run, and watch the ascent play out while a gauge shows how much velocity change the rocket can actually deliver. Under the hood it is the Tsiolkovsky rocket equation — Δv set by exhaust velocity and mass ratio — with gravity, drag and steering losses stripping the ideal figure back to reality. This guide covers the fastest way to embed the Rocket Launch Lab, what it shows, and where it works.

The quickest way: paste one embed snippet

An embed is just an <iframe> that loads the lab from lkforge.com, plus a small credit line. Copy this into your page’s HTML where you want the widget to appear:

<iframe src="https://lkforge.com/embed/rocket/"
        width="100%" height="1800" loading="lazy"
        style="border:0;max-width:720px"
        title="Rocket Launch Lab by LK Forge"></iframe>
<p><a href="https://lkforge.com/tools/physics/rocket/">Rocket Launch Lab</a>
   by <a href="https://lkforge.com/">LK Forge</a></p>

The <iframe> is the live lab; the <p> underneath is a plain credit link. Keep that line — the visible link is what keeps the widget free to embed. You can also copy this exact code straight from the LK Forge widget gallery.

What the widget shows

The lab opens on a worked example, so a visitor sees a full result immediately and can then take control:

Vehicle sliders: set specific impulse, wet mass, dry mass, payload, thrust-to-weight and drag area, or load a preset launch vehicle in one click.
Run the ascent: press Run to fly the launch and watch the schematic and the delivered-Δv gauge update in real time.
Δv-split bar: a stacked bar breaks the ideal Δv into gravity, drag and steering losses, leaving the net Δv the rocket really delivers.
Two plots: an ascent trace and a Δv–mass-ratio curve show why chasing more Δv means burning exponentially more propellant.

Pick the right height

The snippet uses height="1800" and max-width:720px. This is a dashboard-style lab, so on a narrow phone the schematic, controls, readouts and plots stack into a single column — the tall height keeps everything from clipping there. On a wider page the widget simply centres within its max width, so there is nothing to tweak for mobile.

Where it works

Because it is a standard iframe, the embed works anywhere you can add HTML:

WordPress: add a Custom HTML block and paste the snippet.
Squarespace: use a Code / Embed block.
Wix: add an Embed HTML / iframe element.
Ghost: insert an HTML card.
Notion: paste the /embed/rocket/ URL and choose "Create embed".
Plain HTML, an intranet, or a lesson page: paste the snippet straight into the markup.

That’s the whole job. Copy the embed code from the widget gallery and paste it wherever a physics, aerospace or engineering lesson — or a blog post on how rockets reach orbit — needs a launch students can actually fly.

Grab the embed code from the LK Forge widget gallery — free, no sign-up.

Open the Rocket Launch Lab

Frequently asked questions

What can visitors do with the embedded Rocket Launch Lab?: They can drag sliders for specific impulse, wet mass, dry mass, payload, thrust-to-weight and drag area, then press Run to fly the ascent. A schematic and a delivered-Δv gauge update live, a split bar shows how gravity, drag and steering losses eat into the ideal Δv, and two plots trace the ascent and the Δv–mass-ratio curve. One-click presets set up realistic launch vehicles.
What does the Rocket Launch Lab teach?: It makes the Tsiolkovsky rocket equation, Δv = vₑ·ln(m₀/m_f), tangible. Students see why Δv depends on exhaust velocity and mass ratio rather than raw thrust, why the last increments of Δv cost so much propellant — the tyranny of the rocket equation — and how gravity, drag and steering losses cut the ideal figure down, which is exactly why rockets stage.
Is embedding the Rocket Launch Lab free?: Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Rocket Launch Lab by LK Forge" credit line that comes with the embed code.
What iframe height should I use, especially on mobile?: The snippet ships with height="1800", which is tall enough that the schematic, sliders, readouts and both plots all fit without clipping. This dashboard-style lab stacks into a single column on a narrow phone, so the tall height keeps everything visible; on a wider page the widget centres within its max-width of 720px.
Where can I embed it — WordPress, Wix, Squarespace, Notion?: Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/rocket/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.
Does the embedded lab track visitors or set cookies?: No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.