diff --git a/types/format-number/format-number-tests.ts b/types/format-number/format-number-tests.ts
new file mode 100644
index 0000000000..72e3cecdba
--- /dev/null
+++ b/types/format-number/format-number-tests.ts
@@ -0,0 +1,5 @@
+import createFormatNumber from "format-number";
+
+createFormatNumber({ round: 2 }); // $ExpectType (number: number, overrideOptions?: { noUnits: boolean; noSeparator: boolean; } | undefined) => string
+
+createFormatNumber({ round: 2 })(12); // $ExpectType string
diff --git a/types/format-number/index.d.ts b/types/format-number/index.d.ts
new file mode 100644
index 0000000000..03eafefb45
--- /dev/null
+++ b/types/format-number/index.d.ts
@@ -0,0 +1,30 @@
+// Type definitions for format-number 2.0
+// Project: https://github.com/componitable/format-number
+// Definitions by: Fedai Kaya <https://github.com/codelovesme>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export default function(options?: {
+    negativeType?: "right" | "left" | "brackets" | null;
+    negativeLeftSymbol?: string;
+    negative?: "R" | null;
+    negativeRightSymbol?: string;
+    negativeLeftOut?: boolean;
+    negativeOut?: boolean;
+    prefix?: string;
+    suffix?: string;
+    integerSeparator?: string;
+    separator?: string;
+    decimalsSeparator?: string;
+    decimal?: string;
+    padLeft?: number;
+    padRight?: number;
+    round?: number;
+    truncate?: number;
+    allowedSeparators?: string[];
+}): (
+    number: number,
+    overrideOptions?: {
+        noUnits: boolean;
+        noSeparator: boolean;
+    }
+) => string;
diff --git a/types/format-number/tsconfig.json b/types/format-number/tsconfig.json
new file mode 100644
index 0000000000..77b1c052ad
--- /dev/null
+++ b/types/format-number/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": ["index.d.ts", "format-number-tests.ts"]
+}
diff --git a/types/format-number/tslint.json b/types/format-number/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/format-number/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }