diff --git a/src/ui/hash.js b/src/ui/hash.js
index 28e97dabfa6..37052c6bb3b 100644
--- a/src/ui/hash.js
+++ b/src/ui/hash.js
@@ -54,9 +54,11 @@ class Hash {
     getHashString(mapFeedback?: boolean) {
         const center = this._map.getCenter(),
             zoom = Math.round(this._map.getZoom() * 100) / 100,
-            precision = Math.max(0, Math.ceil(Math.log(zoom) / Math.LN2)),
-            lng = Math.round(center.lng * Math.pow(10, precision)) / Math.pow(10, precision),
-            lat = Math.round(center.lat * Math.pow(10, precision)) / Math.pow(10, precision),
+            // derived from equation: 512px * 2^z / 360 / 10^d < 0.5px
+            precision = Math.ceil((zoom * Math.LN2 + Math.log(512 / 360 / 0.5)) / Math.LN10),
+            m = Math.pow(10, precision),
+            lng = Math.round(center.lng * m) / m,
+            lat = Math.round(center.lat * m) / m,
             bearing = this._map.getBearing(),
             pitch = this._map.getPitch();
         let hash = '';