# Liters to Oil barrels (L to bbl)

> Convert liters to oil barrels: 1 L = 0.00628981 bbl. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

- Page id: `liters-to-barrels` · Quantity: Volume (`volume`, base unit L) · Tool: `convert_units`
- Canonical page: https://tttkmbb.com/conversion/liters-to-barrels · This document: https://tttkmbb.com/conversion/liters-to-barrels.md · JSON: https://tttkmbb.com/conversion/liters-to-barrels.json (add `?value=` for a result)

## Formula

- `1 L = 0.00628981 bbl`
- `oil barrels = liters × 0.00628981077`
- Reverse: `liters = oil barrels × 158.9872949`

The factor follows from the SI definitions of both units (NIST SP 811); values below are rounded to 6 significant figures, the API returns up to 12.

## Worked examples

- 5 L = 0.0314491 bbl
- 12.5 L = 0.0786226 bbl
- 100 L = 0.628981 bbl

## Conversion table

| Liters (L) | Oil barrels (bbl) |
| --- | --- |
| 1 | 0.00628981 |
| 2 | 0.0125796 |
| 3 | 0.0188694 |
| 4 | 0.0251592 |
| 5 | 0.0314491 |
| 6 | 0.0377389 |
| 7 | 0.0440287 |
| 8 | 0.0503185 |
| 9 | 0.0566083 |
| 10 | 0.0628981 |
| 15 | 0.0943472 |
| 20 | 0.125796 |
| 25 | 0.157245 |
| 30 | 0.188694 |
| 40 | 0.251592 |
| 50 | 0.314491 |
| 75 | 0.471736 |
| 100 | 0.628981 |
| 200 | 1.25796 |
| 250 | 1.57245 |
| 500 | 3.14491 |
| 1000 | 6.28981 |

## API

- `GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=L&to_unit=bbl` → unified JSON envelope with `result.values.result`, `formula`, `factor`, `sources`, `freshness`
- MCP: server `https://tttkmbb.com/mcp`, tool `convert_units` with `{"value":5,"from_unit":"L","to_unit":"bbl"}`
- All volume units: https://tttkmbb.com/api/v1/units?quantity=volume · full converter: [Volume Converter](https://tttkmbb.com/conversion/volume.md)
- Authentication: none. Freshness: `static` (fixed conversion factors).

## FAQ

**How many oil barrels are in one liter?**

1 L = 0.00628981 bbl. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

**What is the formula to convert liters to oil barrels?**

Multiply the value in liters by 0.00628981077: oil barrels = liters × 0.00628981077. For example, 5 L = 0.0314491 bbl.

**How do I convert oil barrels back to liters?**

Multiply by the inverse factor 158.9872949 (liters = oil barrels × 158.9872949), or use the oil barrels-to-liters page.

## Related conversions

- [Oil barrels to liters](https://tttkmbb.com/conversion/barrels-to-liters.md) (reverse)
- [Liters to US gallons](https://tttkmbb.com/conversion/liters-to-gallons.md)
- [US gallons to Liters](https://tttkmbb.com/conversion/gallons-to-liters.md)
- [Milliliters to US fluid ounces](https://tttkmbb.com/conversion/ml-to-fl-oz.md)
- [US fluid ounces to Milliliters](https://tttkmbb.com/conversion/fl-oz-to-ml.md)
- [Liters to Milliliters](https://tttkmbb.com/conversion/liters-to-ml.md)
- [Milliliters to Liters](https://tttkmbb.com/conversion/ml-to-liters.md)
- [US cups to Milliliters](https://tttkmbb.com/conversion/cups-to-ml.md)
- [Milliliters to US cups](https://tttkmbb.com/conversion/ml-to-cups.md)

## Data Sources

- NIST Special Publication 811 – Guide for the Use of the International System of Units (SI), Appendix B conversion factors — https://www.nist.gov/pml/special-publication-811 (standard, retrieved 2026-09-24)
- BIPM – The International System of Units (SI Brochure, 9th edition) — https://www.bipm.org/en/publications/si-brochure (standard, retrieved 2026-09-24)
- Wikipedia – Conversion of units — https://en.wikipedia.org/wiki/Conversion_of_units (reference, retrieved 2026-09-24)