by Red Rat in Hat

RaceLineCalc — racing line calculator for any track.

Create a reference racing line from a track image, plan, or sketch. Built for karting racing line study, indoor tracks, custom track racing line work, and local-first calculation during amateur racing preparation.

Racing line calculator Track image workflow Karting Indoor tracks Custom layouts Local-first

Screenshots

RaceLineCalc app home screen
Home screen
RaceLineCalc line analysis screen
Line analysis
RaceLineCalc track editor screen
Track editor
RaceLineCalc physical model setting screen
Phys model setting
RaceLineCalc line analysis 2 screen
Line analysis 2

What is RaceLineCalc?

RaceLineCalc is a racing line calculator for track images, plans, and sketches.

It is designed for drivers, karting enthusiasts, amateur racers, track-day preparation, and teams that need a practical reference line before more advanced analysis is available.

Workflow

How it works

  1. Upload a track image, plan, or sketch.
  2. Calibrate scale with a known distance.
  3. Draw left and right track boundaries.
  4. Place the start and finish reference.
  5. Run a baseline solve.
  6. Review the reference racing line and speed profile.

Store availability

App Store and Google Play releases are planned

Store links will be added after release. Until then, use support and privacy pages for product information.

Indoor tracks and karting racing line work

Prepare a reference line for indoor karting circuits and rental karting layouts where public guides are limited.

Custom track racing line

Work from private track maps, custom layouts, plans, and sketches when there is no ready-made circuit model.

Local-first calculation

Use a baseline line and profile for track-day planning, time attack preparation, and practical driving analysis.

Why it exists

Many practical racing venues do not have polished public data or professional guides. RaceLineCalc exists to make reference racing line preparation available for ordinary track images and custom layouts.

Privacy and local-first

RaceLineCalc is planned around local project work. Track images and calculation inputs should stay under user control whenever possible.

Limitations

  • RaceLineCalc is not professional racing advice.
  • It is not a telemetry replacement and does not guarantee the fastest lap.
  • Real-world driving depends on grip, setup, weather, traffic, and driver skill.
  • Source image quality, scale calibration, and boundary placement affect the result.

FAQ

Is RaceLineCalc a professional racing advice product?

No. It provides reference calculations and visualizations. Real-world driving depends on vehicle setup, grip, weather, traffic, and driver skill.

Which platforms are planned?

RaceLineCalc is planned for Web, iOS, and Android.

Does it require public track data?

No. The core idea is to work from user-provided track images, plans, or sketches.

Can it work with custom or local tracks?

Yes. RaceLineCalc is intended for custom, local, and lesser-known tracks when a usable source image, plan, or sketch is available.

Is it a telemetry replacement?

No. RaceLineCalc creates reference calculations and visualizations. Telemetry, testing, and driver feedback remain separate sources of truth.

Where are support and privacy pages?

Use the RaceLineCalc support page and privacy policy linked from this page.