Constants & Units · constant
Planck temperature
T_P = 1.416 784(16) × 10³² K
- Unit
- K
- Value
- 1.416 784(16) × 10³²
- Exact
- no
- Note
- The hottest meaningful temperature; reached, if ever, at the first instant of the Big Bang.
- Symbol
- T_P
- Category
- Universal
- Numeric
- 1.416784e+32
- Uncertainty
- ±1.1 × 10⁻⁵ relative
Open on the Constants & Units shelf — the interactive card, the filters, and everything alongside it.