Planck Times to Seconds Converter
Enter the time in planck times below to convert it to seconds.
Convert Planck Times to Seconds
Enter a value in planck times (tₚ) to convert to seconds (s).
Planck Time to Second Conversion Table
Table showing various planck time measurements converted to seconds. Click any preset value or arrow to load it into the converter.
| Planck Times (tₚ) | Seconds (s) |
|---|---|
| 1 tₚ | 5.391247e-44 s |
| 10 tₚ | 5.391247e-43 s |
| 100 tₚ | 5.391247e-42 s |
| 1,000 tₚ | 5.391247e-41 s |
| 10,000 tₚ | 5.391247e-40 s |
| 100,000 tₚ | 5.391247e-39 s |
| 1,000,000 tₚ | 5.391247e-38 s |
| 5,000,000 tₚ | 2.695624e-37 s |
| 10,000,000 tₚ | 5.391247e-37 s |
| 25,400,000 tₚ | 1.369377e-36 s |
How to Convert Planck Times to Seconds
To convert planck times to seconds, multiply the time by the following conversion ratio: 5.391247e-44 seconds/planck time.
Since one planck time is equal to 5.391247e-44 seconds, you can use this simple formula to convert:
The time in seconds is equal to the time in planck times multiplied by 5.391247e-44.
For example, here's how to convert 5 planck times to seconds using the formula above.
How Many Seconds Are in a Planck Time?
There are 5.391247e-44 seconds in a planck time, which is why we use this value in the formula above.
Our planck time to second calculator automatically converts your time measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Planck Times and seconds are both units used to measure time. Keep reading to learn more about each unit.
What Is a Planck Time?
A planck time is a unit of time equal to 1/18,548,584,399,861,480,000,000,000,000,000,000,000,000,000 of a second (5.391247e-44 s). Time required for light to travel 1 Planck length in vacuum (~5.39×10⁻⁴⁴ s). [1]
The planck time is classified as a standard unit of time. Planck Times can be abbreviated as tₚ; for example, 1 planck time can be written as 1 tₚ.
When working with planck times (tₚ) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, planck times (tₚ) are widely used across fine-tolerance laboratory, analytical, and micro-scale time measurements within international standard workflows, engineering documentation, and technical data sheets.
What Is a Second?
Base SI unit of time. It serves as a primary reference unit for measuring time across scientific and practical applications. [2]
The second is classified as an International System of Units (SI) unit of time. Seconds can be abbreviated as s; for example, 1 second can be written as 1 s.
As the primary coherent reference unit for time in this category, all other time units are mathematically anchored to the second (s).
In practice, seconds (s) are widely used across standard time applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting time between planck times (tₚ) and seconds (s), keep full floating-point precision (1 tₚ = 5.391247e-44 s; 1 s = 1.854858e+43 tₚ) during intermediate calculations and round only the final second figure to match your instrument tolerance.
More Planck Time & Second Conversions
Need to calculate in the opposite direction? Use our seconds to planck times calculator to switch your starting unit immediately. You can also explore related tools such as converting seconds to planck times, converting milliseconds to seconds, or converting days to seconds.
Convert from Planck Times
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Time)·Time Metrology Standard — Planck Times (tₚ) to Seconds (s)
- [2]BIPM SpecificationBIPM (SI Base Unit: Second (s))·Unit Specifications: Planck Time (tₚ) & Second (s)
- [3]NIST CUU ReferenceNIST CUU (Non-SI Units Accepted for Use (min, h, d))·Conversion Factors & Mathematical Basis (tₚ to s)