This ultimate tensile stress calculator finds the maximum stress a material withstands before failure, from the peak load and the cross-sectional area. Enter both values above.
Formula
UTS = Maximum force ÷ Cross-section area
Example
50,000 N over 100 mm² (1×10⁻⁴ m²): UTS = 50,000 ÷ 0.0001 = 5×10⁸ Pa = 500 MPa.
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Frequently Asked Questions
How do I calculate ultimate tensile stress?
Divide the maximum force the specimen carried by its original cross-sectional area.
What is UTS measured in?
Pascals, usually reported in megapascals (MPa) or ksi for engineering materials.
Is UTS the same as yield strength?
No. Yield strength is where permanent deformation begins; UTS is the peak stress before failure.