diff --git a/types/round-to/index.d.ts b/types/round-to/index.d.ts
new file mode 100644
index 0000000000..73622c5012
--- /dev/null
+++ b/types/round-to/index.d.ts
@@ -0,0 +1,28 @@
+// Type definitions for round-to 3.0
+// Project: https://github.com/sindresorhus/round-to#readme
+// Definitions by: Sean Marvi Oliver Genabe <https://github.com/seangenabe>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare namespace roundTo {
+    /**
+     * Round the decimals with `Math.ceil`.
+     * @param input Number to adjust.
+     * @param precision (Integer) number of decimal places.
+     */
+    function up(input: number, precision: number): number;
+    /**
+     * Round the decimals with `Math.floor`.
+     * @param input Number to adjust.
+     * @param precision (Integer) number of decimal places.
+     */
+    function down(input: number, precision: number): number;
+}
+
+/**
+ * Round the decimals with `Math.round`.
+ * @param input Number to adjust.
+ * @param precision (integer) Number of decimal places.
+ */
+declare function roundTo(input: number, precision: number): number;
+
+export = roundTo;
diff --git a/types/round-to/round-to-tests.ts b/types/round-to/round-to-tests.ts
new file mode 100644
index 0000000000..60d4c21538
--- /dev/null
+++ b/types/round-to/round-to-tests.ts
@@ -0,0 +1,10 @@
+import roundTo = require('round-to');
+
+// $ExpectType number
+roundTo(1.234, 2);
+
+// $ExpectType number
+roundTo.up(1.234, 2);
+
+// $ExpectType number
+roundTo.down(1.234, 2);
diff --git a/types/round-to/tsconfig.json b/types/round-to/tsconfig.json
new file mode 100644
index 0000000000..633ed48869
--- /dev/null
+++ b/types/round-to/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true,
+        "strictFunctionTypes": true
+    },
+    "files": [
+        "index.d.ts",
+        "round-to-tests.ts"
+    ]
+}
diff --git a/types/round-to/tslint.json b/types/round-to/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/round-to/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }