diff -u b/core/lib/Drupal/Component/Utility/Number.php b/core/lib/Drupal/Component/Utility/Number.php
--- b/core/lib/Drupal/Component/Utility/Number.php
+++ b/core/lib/Drupal/Component/Utility/Number.php
@@ -18,7 +18,8 @@
    * @param $number int|float|string
    *   The value to normalize. If this is a string, it must be formatted as an
    *   integer or a float. Floats with a higher number of significant decimals
-   *   than 14 will lose the additional precision as PHP does not guarantee.
+   *   than precision value from the PHP runtime configuration [default: 14]
+   *   will lose the additional precision as PHP does not guarantee.
    *
    * @return string
    *   The normalized numeric string.
@@ -28,12 +29,12 @@
     if (is_float($number)) {
       // If the float has less significant decimals than the number we can
       // guarantee, convert it to a string directly.
-      if (preg_match(sprintf('/^\d+\.\d{1,%d}$/', 14), (string) $number)) {
+      if (preg_match(sprintf('/^\d+\.\d{1,%d}$/', ini_get('precision')), (string) $number)) {
         return (string) $number;
       }
       // For floats with more significant decimals than the number we can
       // guarantee, discard the unguaranteed ones.
-      return rtrim(number_format($number, 14, '.', ''), '0');
+      return rtrim(number_format($number, ini_get('precision'), '.', ''), '0');
     }
     return (string) $number;
   }