diff --git a/src/ol/proj.js b/src/ol/proj.js
index f933af175f..89c0d74333 100644
--- a/src/ol/proj.js
+++ b/src/ol/proj.js
@@ -188,6 +188,12 @@ export function getPointResolution(projection, resolution, point, opt_units) {
   const getter = projection.getPointResolutionFunc();
   if (getter) {
     pointResolution = getter(resolution, point);
+    if (opt_units && opt_units !== projection.getUnits()) {
+      const metersPerUnit = projection.getMetersPerUnit();
+      if (metersPerUnit) {
+        pointResolution = pointResolution * metersPerUnit / METERS_PER_UNIT[opt_units];
+      }
+    }
   } else {
     const units = projection.getUnits();
     if (units == Units.DEGREES && !opt_units || opt_units == Units.DEGREES) {
diff --git a/src/ol/proj/Projection.js b/src/ol/proj/Projection.js
index ce4b2cb305..8c4f0d7ac7 100644
--- a/src/ol/proj/Projection.js
+++ b/src/ol/proj/Projection.js
@@ -19,7 +19,7 @@ import {METERS_PER_UNIT} from './Units.js';
  * @property {function(number, import("../coordinate.js").Coordinate):number} [getPointResolution]
  * Function to determine resolution at a point. The function is called with a
  * `{number}` view resolution and an `{import("../coordinate.js").Coordinate}` as arguments, and returns
- * the `{number}` resolution at the passed coordinate. If this is `undefined`,
+ * the `{number}` resolution in projection units at the passed coordinate. If this is `undefined`,
  * the default {@link module:ol/proj#getPointResolution} function will be used.
  */