# Hours to Minutes (h to min)

> Convert hours to minutes: 1 h = 60 min. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

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

## Formula

- `1 h = 60 min`
- `minutes = hours × 60`
- Reverse: `hours = minutes × 0.01666666667`

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 = 300 min
- 12.5 h = 750 min
- 100 h = 6000 min

## Conversion table

| Hours (h) | Minutes (min) |
| --- | --- |
| 1 | 60 |
| 2 | 120 |
| 3 | 180 |
| 4 | 240 |
| 5 | 300 |
| 6 | 360 |
| 7 | 420 |
| 8 | 480 |
| 9 | 540 |
| 10 | 600 |
| 15 | 900 |
| 20 | 1200 |
| 25 | 1500 |
| 30 | 1800 |
| 40 | 2400 |
| 50 | 3000 |
| 75 | 4500 |
| 100 | 6000 |
| 200 | 12000 |
| 250 | 15000 |
| 500 | 30000 |
| 1000 | 60000 |

## API

- `GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=h&to_unit=min` → 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":"min"}`
- 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 minutes are in one hour?**

1 h = 60 min. 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 minutes?**

Multiply the value in hours by 60: minutes = hours × 60. For example, 5 h = 300 min.

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

Multiply by the inverse factor 0.01666666667 (hours = minutes × 0.01666666667), or use the minutes-to-hours page.

## Related conversions

- [Minutes to hours](https://tttkmbb.com/conversion/minutes-to-hours.md) (reverse)
- [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)
- [Years (365 days) to Days](https://tttkmbb.com/conversion/years-to-days.md)
- [Days to Years (365 days)](https://tttkmbb.com/conversion/days-to-years.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)