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Arcsin (Inverse Sine) Calculator

Calculate the angle (in degrees or radians) whose sine equals a given value. Includes principal value range (−90° to 90° / −π/2 to π/2) and general solutions.

Arcsin (Inverse Sine) Calculator
Arcsin (Inverse Sine) Calculator:

Try examples: [x = 0.5] [x = 1] [x = 0] [x ≈ −√3/2]

Sine value x:
Output unit:
Precision: decimal places
Type any value 1–1000, or select from suggestions

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About Arcsin (Inverse Sine) Calculator

Welcome to the Arcsin (Inverse Sine) Calculator. Enter a sine value x (where −1 ≤ x ≤ 1) and get the corresponding principal angle θ₀ = arcsin(x) in degrees or radians. This tool also clarifies the principal value range (−90° to 90° / −π/2 to π/2) and shows the general solution for all angles that satisfy sin θ = x. Adjustable precision lets you format the output from 1 to 1000 decimal places. Precise results are powered by true arbitrary‑precision arithmetic.

High-Precision Advantage

What this calculator provides

Principal value range

By definition, arcsin returns the unique principal value θ₀ in the interval [−π/2, π/2] (i.e., [−90°, 90°]) such that sin(θ₀) = x. All other angles with the same sine value can be obtained from the general solution relationships described in the result section.

Reference this content, page, or tool as:

"Arcsin (Inverse Sine) Calculator" at https://MiniWebtool.com/arcsin-calculator/ from MiniWebtool, https://MiniWebtool.com/

by miniwebtool team. Updated: Nov 09, 2025

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