fuel-detour receipt · till receipt with a tear-off foot

Check Whether Cheaper Fuel Pays for the Detour

The station with the lower board price is not always the cheaper fill-up once the detour burns fuel of its own. One receipt line: purchase saving on the litres you buy, minus the fuel the extra kilometres consume.

1 · Option code | price A per litre | price B per litre | extra round-trip km | economy km per litre

FIRST-LOAD

HYPOTHESIS / PROTOTYPE — checkout unavailable. Calculation is local. A draft is saved automatically in this browser profile when storage is available; Reset to sample clears it. Optional Pro history stores only five summaries and has its own deletion control. State links encode your inputs and can remain in browser history, clipboard or recipients’ records; share only non-sensitive rows. Optional external AI formatting leaves this device. The required site analytics beacon reports page activity; shared URLs contain encoded inputs. Do not treat an encoded URL as private. The calculator has no input-collection endpoint.

Data note: The fuel-detour receipt processes Option code | price A per litre | price B per litre | extra round-trip km | economy km per litre locally. Starter/sample selection and Run compute in this tab; no input is sent by the calculator. A local draft may be saved; explicit state-link sharing or optional external AI formatting can disclose inputs. Use non-sensitive labels.

Perspective: Before: the lower board price looked like free money. After: the receipt shows the purchase saving minus the fuel the detour itself consumes.

2 · Read the fuel-detour receipt

Travel-budget arithmetic on reader-supplied prices, distances and economy only, not a quote or a verified fuel offer. Confirm pump prices and plan driving within legal and safe limits; do not use this tool while driving.

Paid layer: fuel-detour receipt filing layer

one-time step · the free reading above stays complete

hidden patterns detected after your first run

Free tier

one complete unwatermarked fuel-detour receipt run in the app
three labeled samples and unlimited article-demo calculations
complete result text and a user-triggered input-state link

What $4 one-time adds

unlimited subsequent fuel-detour receipt app calculations after a local convenience signal
print the fuel-detour receipt with visible assumptions and its safety boundary
CSV of the displayed net currency units and row workings; conditional estimate uses your manual-retyping minutes
five local reading summaries (headline/count/time), not saved full inputs or cross-device backups

HYPOTHESIS / PROTOTYPE: $4 is a proposed one-time price for filing the fuel-detour receipt, not a current sales offer. No measured time saving or buyer demand is claimed. The optional manual-retyping baseline above estimates one export’s retyping budget only; it does not change the calculation or guarantee savings.

Local history (this device)

No saved runs yet — your first run files here.

Filing prototype — checkout unavailable

Checkout is unavailable. Browser-local, profile-scoped convenience gating is best-effort, not server-verified access. A URL or browser flag is not proof of payment. Clearing browser data removes local state; no account or cross-device recovery is provided.

Optional filing controls are a local prototype.

Checkout is unavailable. The reading above is complete; print, CSV and five local summaries are optional enhancements, not hidden answers.

Before using the fuel-detour receipt

Both prices must be quoted per litre at the pump for the same fuel grade; if one is per gallon or for a different grade, convert or correct it before entry. The litres figure is what you intend to buy — a full tank, a top-up — and applies to both options. Economy is your vehicle's real consumption in km per litre under detour-like driving; the tool deliberately takes it as supplied rather than guessing from a model name. Extra kilometres are the round-trip addition over your normal route, as you estimate them. The net figure ignores time value, tolls, tyre wear and the chance the queue at the cheap station eats the margin — all of which are yours to weigh around the arithmetic.

Boundary and sources

Method: Extra round-trip km means the distance added versus the route you would otherwise drive; a station that is merely nearby but not on your path can still add kilometres. Economy should reflect the stop-start or extra-urban character of the detour, taken from your own records. Multiply them together only inside the formula: (km ÷ km/L) × destination price.
All sample records, dates, quantities and labels are invented. No outside policy, contract, rate, clock offset, measurement or accessibility standard is represented as verified.
Google’s official pricing documentation, fetched 2026-10-01, says AI Studio is free in available regions. Optional formatting may require a Google account; manual local entry requires none. Limits can change and free-tier content may be used to improve products. Do not send private records.

Mechanism: competence-autonomy-loop

Optional AI formatting, never the calculation

Manual entry completes this fuel-detour receipt for free without signup. If available to you, the free AI Studio interface linked in the sources may format fictional or non-sensitive notes; external access may require an account. No API key or AI call is built into this tool. Free-tier content may be used to improve products. Review each cell and transcribe it to the labeled row schema; do not paste the JSON object into the row box.

Format only these fictional or non-sensitive notes for a fuel-detour receipt. Return strict JSON shaped as {"rows": [{"label": "string", "cells": ["string", "string", "string", "string"]}], "setting": "string"}. The columns are Option code | price A per litre | price B per litre | extra round-trip km | economy km per litre; the setting is Litres to buy at the pump (same in both places). Keep all supplied strings and quantities exactly; do not calculate, infer missing entries, invent dates or add advice. If any required value is missing, return an empty rows array and ask me for it separately. I will verify every cell against my source and manually transcribe rows using vertical bars before running the local calculator.

An AI response is not executed, fetched or trusted as a result. Missing values remain questions; the strict local parser checks the rows you actually enter.