✓ Effortless Math · Free Tool

Inverse Trig Calculator

Find arcsin, arccos, or arctan of a value in both degrees and radians — with the principal range and step-by-step working.

sin⁻¹, cos⁻¹, tan⁻¹ — principal values in degrees and radians
arcsin( value x )

For arcsin and arccos the value must be between −1 and 1. arctan accepts any value.

Results

Principal value
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In degrees
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In radians
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Principal range
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Domain of input
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Step-by-step