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Young’s Modulus Calculator

🧱 Forces & Newton’s laws. Use the Young’s modulus formula to find young’s modulus, force, original length, cross-section area, extension: pick the value you want, type the others, and the answer updates as you go.

E=FL0A ΔLE = \dfrac{F L_0}{A\,\Delta L}
Young’s modulus2 × 10¹¹ Pa

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
Young’s modulusPa
ForceN
Original lengthm
Cross-section aream²
Extensionm

Worked example

Find the young’s modulus when Force = 1000 N, Original length = 2 m, Cross-section area = 1 × 10⁻⁶ m², Extension = 0.01 m.

Using E = (F L0)/(A Δ L): Young’s modulus = 2 × 10¹¹ Pa.

Frequently asked questions

What is the formula for Young’s modulus?

E = (F L0)/(A Δ L).

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

Young’s modulus in Pa, Force in N, Original length in m, Cross-section area in m², Extension in m.

How do you calculate young’s modulus?

Put the values into E = (F L0)/(A Δ L). For example, with Force = 1000 N, Original length = 2 m, Cross-section area = 1 × 10⁻⁶ m², Extension = 0.01 m, young’s modulus = 2 × 10¹¹ Pa.

Can I solve for a different value?

Yes. In the calculator above, pick the circle next to any value (young’s modulus, force, original length, cross-section area, extension) and fill in the others: it rearranges the formula for you.

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