# How many tanks of gas is a wedding ring?

The gold in a 3.0 g ring of 14 k gold is worth $218.60, which is 4.0 tanks of gasoline today and 4.1 tanks at DataSnack's numbers for seven days from now.

At the gold future's price for pure gold and the US average pump price.

- Now: 4.0 tanks
- In seven days: 4.1 tanks

## The working

The value of the gold in a ring at the gold future's price, divided by the cost of one tank of regular gasoline at the US average.

| Step | Expression | Now | In seven days |
| - | - | - | - |
| Gold in the ring | `grams / troy * karat / 24 * gold` | $218.60 | $224.77 |
| One tank | `tank * gas` | $54.71 | $54.18 |
| Tanks of gas | `metal / fill` | 4.0 tanks | 4.1 tanks |

Each name in an expression is an input below or an earlier step.

## What this runs on

### DataSnack's models

- `gold`: [Gold future](https://datasnack.ai/m/ch:58e56fb7dbd2), $3,885.30 per oz now (2026-11-12), $3,994.93 per oz in seven days
- `gas`: [Gasoline at the pump](https://datasnack.ai/m/ch:b3c52887e1a9), $3.908 per gal now (2026-11-12), $3.870 per gal in seven days

### Published figures

- `troy`: Grams in a troy ounce, 31.1035 g ([NIST Office of Weights and Measures, Conversion Factors for Precious Metal Sales](https://www.nist.gov/document/precious-metals-conversion-information-march2015pdf), read 2026-11-13)

### Your assumptions

- `grams`: Weight of the ring, 3.0 g (change it on the page)
- `karat`: Karat, 14 k (change it on the page)
- `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 is the metal's value only: a jeweller buys below it and sells far above it, and the stones and the work are not counted.

## The record

The first answer is graded seven days after it is made.

Data: [CSV](https://datasnack.ai/feed/q/ring-in-tanks.csv) · [JSON](https://datasnack.ai/feed/q/ring-in-tanks.json) · [Workbook (Excel)](https://datasnack.ai/feed/q/ring-in-tanks.xlsx)

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Canonical: https://datasnack.ai/q/ring-in-tanks · Updated 13 Nov 2026 12:00 UTC · DataSnack forecasts are analysis, not investment advice.