Science Academy
☰✕

Wien’s Displacement Law Calculator

🔥 Heat & thermodynamics. Use the Wien’s displacement law formula to find peak wavelength, temperature: pick the value you want, type the others, and the answer updates as you go.

λmaxT=2.898×10−3 m K\lambda_{max} T = 2.898 \times 10^{-3}\ \text{m K}
Peak wavelength5 × 10⁻⁷ m

Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.

What each letter means

QuantityUnit
Peak wavelengthm
TemperatureK

Worked example

Find the peak wavelength when Temperature = 5796 K.

Using T = 2.898 × 10^(-3) m K: Peak wavelength = 5 × 10⁻⁷ m.

Frequently asked questions

What is the formula for Wien’s displacement law?

T = 2.898 × 10^(-3) m K.

What do the letters stand for, and what units are used?

Peak wavelength in m, Temperature in K.

How do you calculate peak wavelength?

Put the values into T = 2.898 × 10^(-3) m K. For example, with Temperature = 5796 K, peak wavelength = 5 × 10⁻⁷ m.

Can I solve for a different value?

Yes. In the calculator above, pick the circle next to any value (peak wavelength, temperature) and fill in the others: it rearranges the formula for you.

All physics formulas in the Physics Formulas