diff --git a/src/client/Elements/Input.jsx b/src/client/Elements/Input.jsx
index b8e8095..1f03316 100644
--- a/src/client/Elements/Input.jsx
+++ b/src/client/Elements/Input.jsx
@@ -3,11 +3,12 @@ import { useStores } from 'client/hooks/useStores';
 import { observer } from 'mobx-react';
 import React, { useEffect, useState } from 'react';
 import { useDebounce } from 'use-debounce';
+import { DEBOUNCE_DELAY } from '../../constants/debounce';
 
 const Input = ({ readonly, placeholder, bindedValueName, computedValue }) => {
   const { calculationStore } = useStores();
   const [currentValue, setCurrentValue] = useState(undefined);
-  const [debouncedValue] = useDebounce(currentValue, 850);
+  const [debouncedValue] = useDebounce(currentValue, DEBOUNCE_DELAY);
 
   const sourceValue = calculationStore.values[bindedValueName];
 
diff --git a/src/constants/debounce.js b/src/constants/debounce.js
new file mode 100644
index 0000000..3bc0649
--- /dev/null
+++ b/src/constants/debounce.js
@@ -0,0 +1 @@
+export const DEBOUNCE_DELAY = 800;