# Torr to Pascals (torr to Pa)

> Convert torr to pascals: 1 torr = 133.322 Pa. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

- Page id: `torr-to-pa` · Quantity: Pressure (`pressure`, base unit Pa) · Tool: `convert_units`
- Canonical page: https://tttkmbb.com/conversion/torr-to-pa · This document: https://tttkmbb.com/conversion/torr-to-pa.md · JSON: https://tttkmbb.com/conversion/torr-to-pa.json (add `?value=` for a result)

## Formula

- `1 torr = 133.322 Pa`
- `pascals = torr × 133.3223684`
- Reverse: `torr = pascals × 0.007500616827`

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 torr = 666.612 Pa
- 12.5 torr = 1666.53 Pa
- 100 torr = 13332.2 Pa

## Conversion table

| Torr (torr) | Pascals (Pa) |
| --- | --- |
| 1 | 133.322 |
| 2 | 266.645 |
| 3 | 399.967 |
| 4 | 533.289 |
| 5 | 666.612 |
| 6 | 799.934 |
| 7 | 933.257 |
| 8 | 1066.58 |
| 9 | 1199.9 |
| 10 | 1333.22 |
| 15 | 1999.84 |
| 20 | 2666.45 |
| 25 | 3333.06 |
| 30 | 3999.67 |
| 40 | 5332.89 |
| 50 | 6666.12 |
| 75 | 9999.18 |
| 100 | 13332.2 |
| 200 | 26664.5 |
| 250 | 33330.6 |
| 500 | 66661.2 |
| 1000 | 133322 |

## API

- `GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=torr&to_unit=Pa` → 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":"torr","to_unit":"Pa"}`
- All pressure units: https://tttkmbb.com/api/v1/units?quantity=pressure · full converter: [Pressure Converter](https://tttkmbb.com/conversion/pressure.md)
- Authentication: none. Freshness: `static` (fixed conversion factors).

## FAQ

**How many pascals are in one torr?**

1 torr = 133.322 Pa. 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 torr to pascals?**

Multiply the value in torr by 133.3223684: pascals = torr × 133.3223684. For example, 5 torr = 666.612 Pa.

**How do I convert pascals back to torr?**

Multiply by the inverse factor 0.007500616827 (torr = pascals × 0.007500616827), or use the pascals-to-torr page.

## Related conversions

- [Pascals to torr](https://tttkmbb.com/conversion/pa-to-torr.md) (reverse)
- [Psi to Bar](https://tttkmbb.com/conversion/psi-to-bar.md)
- [Bar to Psi](https://tttkmbb.com/conversion/bar-to-psi.md)
- [Psi to Kilopascals](https://tttkmbb.com/conversion/psi-to-kpa.md)
- [Kilopascals to Psi](https://tttkmbb.com/conversion/kpa-to-psi.md)
- [Bar to Kilopascals](https://tttkmbb.com/conversion/bar-to-kpa.md)
- [Kilopascals to Bar](https://tttkmbb.com/conversion/kpa-to-bar.md)
- [Atmospheres to Pascals](https://tttkmbb.com/conversion/atm-to-pa.md)
- [Pascals to Atmospheres](https://tttkmbb.com/conversion/pa-to-atm.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)