Fill up today or wait a week?
A 14 gal tank costs $54.71 at today's average and $54.18 at DataSnack's number for seven days from now, $0.53 less.
At the US average pump price; a given station will differ.
- Now: $54.71
- In seven days: $54.18
The working
The cost of one tank of regular gasoline at today's US average price, and at DataSnack's number for that price seven days from now.
| Step | Expression | Now | In seven days |
|---|---|---|---|
| One tank | `tank gas` | $54.71 | $54.18 |
Each name in an expression is an input below or an earlier step.
What this runs on
DataSnack's models
- `gas`: Gasoline at the pump, $3.908 per gal now (2026-11-12), $3.870 per gal in seven days
Your assumptions
- `tank`: Tank size, 14 gal (change it on the page)
Every model here is graded in public. Download the workbook and rebuild it.
What this cannot tell you
It does not say what any one station will charge, and the seven-day number is a forecast with its own record.
The record
The first answer is graded seven days after it is made.
Data: CSV · JSON · Workbook (Excel)
Canonical: https://datasnack.ai/q/fill-up-or-wait · Updated 13 Nov 2026 12:00 UTC · DataSnack forecasts are analysis, not investment advice.