# Hours to Weeks (h to wk)

> Convert hours to weeks: 1 h = 0.00595238 wk. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

- Page id: `hours-to-weeks` · Quantity: Time (`time`, base unit s) · Tool: `convert_units`
- Canonical page: https://tttkmbb.com/conversion/hours-to-weeks · This document: https://tttkmbb.com/conversion/hours-to-weeks.md · JSON: https://tttkmbb.com/conversion/hours-to-weeks.json (add `?value=` for a result)

## Formula

- `1 h = 0.00595238 wk`
- `weeks = hours × 0.005952380952`
- Reverse: `hours = weeks × 168`

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 h = 0.0297619 wk
- 12.5 h = 0.0744048 wk
- 100 h = 0.595238 wk

## Conversion table

| Hours (h) | Weeks (wk) |
| --- | --- |
| 1 | 0.00595238 |
| 2 | 0.0119048 |
| 3 | 0.0178571 |
| 4 | 0.0238095 |
| 5 | 0.0297619 |
| 6 | 0.0357143 |
| 7 | 0.0416667 |
| 8 | 0.047619 |
| 9 | 0.0535714 |
| 10 | 0.0595238 |
| 15 | 0.0892857 |
| 20 | 0.119048 |
| 25 | 0.14881 |
| 30 | 0.178571 |
| 40 | 0.238095 |
| 50 | 0.297619 |
| 75 | 0.446429 |
| 100 | 0.595238 |
| 200 | 1.19048 |
| 250 | 1.4881 |
| 500 | 2.97619 |
| 1000 | 5.95238 |

## API

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

## FAQ

**How many weeks are in one hour?**

1 h = 0.00595238 wk. 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 hours to weeks?**

Multiply the value in hours by 0.005952380952: weeks = hours × 0.005952380952. For example, 5 h = 0.0297619 wk.

**How do I convert weeks back to hours?**

Multiply by the inverse factor 168 (hours = weeks × 168), or use the weeks-to-hours page.

## Related conversions

- [Weeks to hours](https://tttkmbb.com/conversion/weeks-to-hours.md) (reverse)
- [Hours to Minutes](https://tttkmbb.com/conversion/hours-to-minutes.md)
- [Minutes to Hours](https://tttkmbb.com/conversion/minutes-to-hours.md)
- [Minutes to Seconds](https://tttkmbb.com/conversion/minutes-to-seconds.md)
- [Seconds to Minutes](https://tttkmbb.com/conversion/seconds-to-minutes.md)
- [Days to Hours](https://tttkmbb.com/conversion/days-to-hours.md)
- [Hours to Days](https://tttkmbb.com/conversion/hours-to-days.md)
- [Weeks to Days](https://tttkmbb.com/conversion/weeks-to-days.md)
- [Days to Weeks](https://tttkmbb.com/conversion/days-to-weeks.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)