Charles's Law Calculator
Calculate gas volume at a new temperature using V₁/T₁ = V₂/T₂. Enter volume and two temperatures.
How to Use Charles's Law Calculator
- Enter the initial gas volume in liters.
- Enter the initial temperature in °C.
- Enter the final temperature in °C to find the new volume.
Quick Reference
| From | To |
|---|---|
| 1 L at 0 °C → 100 °C | 1.366 L |
| 2 L at 20 °C → 80 °C | 2.41 L |
| 5 L at 25 °C → −10 °C | 4.41 L |
| 0 °C | 273.15 K |
| 100 °C | 373.15 K |
Use Cases
- •Hot air balloon volume calculations.
- •Gas expansion in heating systems.
- •Chemistry lab gas experiments.
Formula
V₁/T₁ = V₂/T₂ → V₂ = V₁ × T₂/T₁, where temperatures are in Kelvin. Input is in Celsius (converted automatically).
Frequently Asked Questions
What is Charles's law?
Charles's law states that the volume of an ideal gas is directly proportional to its absolute temperature at constant pressure.
Why Kelvin?
Gas laws use absolute temperature (Kelvin) because volume is proportional to absolute temperature, not Celsius.
Is this calculator free?
Yes, all OhMyCalc calculators are completely free.