# Cubic meters to Cubic yards (m³ to yd³)

> Convert cubic meters to cubic yards: 1 m³ = 1.30795 yd³. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

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

## Formula

- `1 m³ = 1.30795 yd³`
- `cubic yards = cubic meters × 1.307950619`
- Reverse: `cubic meters = cubic yards × 0.764554858`

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 m³ = 6.53975 yd³
- 12.5 m³ = 16.3494 yd³
- 100 m³ = 130.795 yd³

## Conversion table

| Cubic meters (m³) | Cubic yards (yd³) |
| --- | --- |
| 1 | 1.30795 |
| 2 | 2.6159 |
| 3 | 3.92385 |
| 4 | 5.2318 |
| 5 | 6.53975 |
| 6 | 7.8477 |
| 7 | 9.15565 |
| 8 | 10.4636 |
| 9 | 11.7716 |
| 10 | 13.0795 |
| 15 | 19.6193 |
| 20 | 26.159 |
| 25 | 32.6988 |
| 30 | 39.2385 |
| 40 | 52.318 |
| 50 | 65.3975 |
| 75 | 98.0963 |
| 100 | 130.795 |
| 200 | 261.59 |
| 250 | 326.988 |
| 500 | 653.975 |
| 1000 | 1307.95 |

## API

- `GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=m3&to_unit=yd3` → 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":"m3","to_unit":"yd3"}`
- 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 cubic yards are in one cubic meter?**

1 m³ = 1.30795 yd³. 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 cubic meters to cubic yards?**

Multiply the value in cubic meters by 1.307950619: cubic yards = cubic meters × 1.307950619. For example, 5 m³ = 6.53975 yd³.

**How do I convert cubic yards back to cubic meters?**

Multiply by the inverse factor 0.764554858 (cubic meters = cubic yards × 0.764554858), or use the cubic yards-to-cubic meters page.

## Related conversions

- [Cubic yards to cubic meters](https://tttkmbb.com/conversion/cubic-yards-to-cubic-meters.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)