Fuel & Trip
Fuel & Trip, a small reckoner that computes in your browser and stores nothing. No account, no cloud, no telemetry.
This is not a screenshot. It's the real tool, running right here: go on, put something in it.
Forged into a knife, this tool ages with use: the blades you reach for wear soft, entries you tend keep their bloom, and the years travel with the file through every reforge.
Before a long drive there is always the same quiet sum: how far, how thirsty the car, what petrol costs these days. Fuel & Trip does that arithmetic — what the journey will drink and what the drinking will cost — before you commit to visiting the in-laws by road. It computes the figure and keeps no record of where you were thinking of going.
Standing facts
- One HTML file. Opens in any modern browser, on any operating system.
- No account. No login, no sign-up, no e-mail wall.
- No cloud. Nothing leaves your browser: no server, no telemetry, no analytics.
- Yours forever. The file keeps working whether or not Offline.Ltd does.
- Ages with use. Entries you tend keep their bloom; the years travel with the file through every reforge.
In ten years
Fuel & Trip computes; it doesn't hoard. Open the file in 2036 and it will do the same arithmetic it does today, because the arithmetic is written into the file and nothing about it needs a server to agree.
If Offline.Ltd closes tomorrow, nothing on your machine notices. That isn't a marketing promise; it's simply what a file is.
Getting your data out
There is nothing locked in to get out: copy the numbers, or keep the file. Either way you owe no one a request form. No export queue, no "we'll e-mail you a link within 48 hours", no format that only one vendor can read.
Copy the file to a USB stick, a NAS, a folder your devices already sync. It runs on Windows, macOS, Linux, Android and iOS, online or off, because a browser is the only thing it ever needed.
Who else sees this
Nobody. Fuel & Trip works out its answer in your browser and forgets it the moment you close the tab: there is no store to breach, because nothing is stored. There is no account, no telemetry, no analytics, and no code in the file that opens a network connection, pull the cable and watch it carry on working. How privacy works across the Reckoners tools →
Questions people ask
How do I calculate fuel cost for a road trip?
Give it the distance, your car's consumption, and the fuel price, and it tells you what the trip will cost. Run it both ways and you have the round-trip figure before you have found your keys.
Does this trip calculator track my location or my journeys?
Neither. It is a single HTML file running offline in your browser — no maps, no GPS, no account. It computes your sums on the spot and stores nothing; your travel plans never leave the page.
Can I use it to compare driving against the train?
Yes, in the practical sense: it gives you the honest cost of driving, and you hold that number up against the ticket price. Sometimes the train wins, and now you have the arithmetic to say so.
Go deeper on Fuel & Trip
More Reckoners
Fits your knife at weight 1. Nothing here is final, Knife follows Life. Reforging within your tier is free, forever. Add it, drop it, reforge it later; the file stays yours either way.