Embed the FOV calculator

What visitors can calculate

Visitors can enter flat, curved, or triple-screen measurements in a compact, single-column calculator and open their result on the full tool page.

Privacy

no analytics, no cookies, no external requests - audit the network tab

The calculator runs in the visitor's browser. Its only network request is an optional, same-origin game-conventions dataset; if that dataset is unavailable, the physical geometry calculator keeps working.

Copy-paste iframe

<iframe id='sim-geometry-fov'
  src='https://simgeometry.com/embed/fov/?theme=auto&amp;units=in'
  title='Sim Geometry FOV calculator'
  loading='lazy'
  sandbox='allow-scripts allow-popups allow-popups-to-escape-sandbox'
  width='100%'
  height='900'></iframe>

Parameters

theme=light|dark|auto

Forces the light palette, the dark palette, or the dark-first site default.

units=in|cm|mm

Sets the form's initial measurement units. A valid share fragment takes precedence.

Automatic height

The embed reports its rendered height. Add this script on the parent page after the iframe:

<script>
const frame = document.querySelector('#sim-geometry-fov');

window.addEventListener('message', (event) => {
  const message = event.data;
  if (event.source !== frame.contentWindow ||
      message?.type !== 'sim-geometry-embed-height' ||
      !Number.isFinite(message.px)) return;

  frame.height = String(Math.max(320, Math.ceil(message.px)));
});
</script>