diff --git a/rstar/CHANGELOG.md b/rstar/CHANGELOG.md
index 2f6d912..e6ae444 100644
--- a/rstar/CHANGELOG.md
+++ b/rstar/CHANGELOG.md
@@ -5,6 +5,7 @@
 - Added nearest neighbor search with distance squared: `nearest_neighbor_with_distance_2` and `nearest_neighbors_with_distance_2` methods ([PR](https://github.com/georust/rstar/pull/191)).
 - Added `root` doc examples and traversal docs
 - Implemented `RTreeObject` for `Arc<T>` and `Rc<T>`
+- New `AABB::from_center` utility constructor
 
 ## Fixed
 - Fix excessive memory retention in `bulk_load` from `Vec::split_off` over-capacity
diff --git a/rstar/src/aabb.rs b/rstar/src/aabb.rs
index 09cde52..45d5f43 100644
--- a/rstar/src/aabb.rs
+++ b/rstar/src/aabb.rs
@@ -64,6 +64,18 @@ where
         }
     }
 
+    /// Creates a new AABB from a center and a diameter.
+    pub fn from_center(center: P, diameter: P::Scalar) -> Self {
+        let one = P::Scalar::one();
+        let two = one + one;
+        let radius = P::from_value(diameter / two);
+
+        let p1 = center.add(&radius);
+        let p2 = center.sub(&radius);
+
+        Self::from_corners(p1, p2)
+    }
+
     /// Creates a new AABB encompassing a collection of points.
     pub fn from_points<'a, I>(i: I) -> Self
     where