diff --git a/PreciseNumber.Test/PreciseNumberTests.cs b/PreciseNumber.Test/PreciseNumberTests.cs
index 10ea1d1..33a43bb 100644
--- a/PreciseNumber.Test/PreciseNumberTests.cs
+++ b/PreciseNumber.Test/PreciseNumberTests.cs
@@ -84,6 +84,25 @@ public void TestClampLower()
 		Assert.AreEqual(min, result);
 	}
 
+	[TestMethod]
+	public void TestClampThrowsWhenMinIsGreaterThanMax()
+	{
+		PreciseNumber min = 3.ToPreciseNumber();
+		PreciseNumber max = 1.ToPreciseNumber();
+
+		// Every value, inside or outside the inverted range, is a caller bug, as it is for Math.Clamp.
+		Assert.ThrowsExactly<ArgumentException>(() => PreciseNumber.Clamp(2.ToPreciseNumber(), min, max));
+		Assert.ThrowsExactly<ArgumentException>(() => PreciseNumber.Clamp(5.ToPreciseNumber(), min, max));
+		Assert.ThrowsExactly<ArgumentException>(() => 2.ToPreciseNumber().Clamp(3, 1));
+	}
+
+	[TestMethod]
+	public void TestClampAcceptsEqualBounds()
+	{
+		PreciseNumber bound = 3.ToPreciseNumber();
+		Assert.AreEqual(bound, PreciseNumber.Clamp(7.ToPreciseNumber(), bound, bound));
+	}
+
 	[TestMethod]
 	public void TestClampUpper()
 	{
diff --git a/PreciseNumber/PreciseNumber.cs b/PreciseNumber/PreciseNumber.cs
index fc17624..cb43ef7 100644
--- a/PreciseNumber/PreciseNumber.cs
+++ b/PreciseNumber/PreciseNumber.cs
@@ -572,11 +572,17 @@ public PreciseNumber Round(int decimalDigits)
 	/// <param name="min">The minimum value.</param>
 	/// <param name="max">The maximum value.</param>
 	/// <returns>The clamped value.</returns>
+	/// <exception cref="ArgumentException"><paramref name="min"/> is greater than <paramref name="max"/>.</exception>
 	public PreciseNumber Clamp<TNumber>(TNumber min, TNumber max)
 		where TNumber : INumber<TNumber>
 	{
 		PreciseNumber sigMin = min.ToPreciseNumber();
 		PreciseNumber sigMax = max.ToPreciseNumber();
+		if (sigMin > sigMax)
+		{
+			throw new ArgumentException($"'{sigMin}' cannot be greater than {sigMax}.", nameof(min));
+		}
+
 		PreciseNumber clampedToMax = this > sigMax ? sigMax : this;
 		return this < sigMin ? sigMin : clampedToMax;
 	}
@@ -1710,6 +1716,7 @@ public static bool NotEqual(PreciseNumber left, PreciseNumber right) =>
 	/// <param name="min">The minimum value.</param>
 	/// <param name="max">The maximum value.</param>
 	/// <returns>The clamped number.</returns>
+	/// <exception cref="ArgumentException"><paramref name="min"/> is greater than <paramref name="max"/>.</exception>
 	public static PreciseNumber Clamp(PreciseNumber value, PreciseNumber min, PreciseNumber max) =>
 		value.Clamp(min, max);