diff --git a/types/barbellweights/barbellweights-tests.ts b/types/barbellweights/barbellweights-tests.ts
new file mode 100644
index 0000000000..7652728824
--- /dev/null
+++ b/types/barbellweights/barbellweights-tests.ts
@@ -0,0 +1,33 @@
+import { BarbellWeight } from "barbellweights";
+
+let calculator: BarbellWeight;
+let results: any;
+
+calculator = new BarbellWeight(200, "bench press");
+results = calculator.getResults();
+
+calculator = new BarbellWeight(500, "deadlift");
+results = calculator.getResults();
+
+calculator = new BarbellWeight(400, "squat");
+results = calculator.getResults();
+
+calculator = new BarbellWeight(400, "deadlift", { program: "QUARTER" });
+results = calculator.getResults();
+
+calculator = new BarbellWeight(400, "deadlift", { bar: 45 });
+results = calculator.getResults();
+
+calculator = new BarbellWeight(400, "deadlift", { plates: [45, 10, 5] });
+results = calculator.getResults();
+
+calculator = new BarbellWeight(400, "deadlift", { warmup_round_to: 5 });
+results = calculator.getResults();
+
+calculator = new BarbellWeight(300, "squat", {
+    program: "STARTING_STRENGTH",
+    bar: 45,
+    plates: [45, 25, 10, 5],
+    warmup_round_to: 5
+});
+results = calculator.getResults();
diff --git a/types/barbellweights/index.d.ts b/types/barbellweights/index.d.ts
new file mode 100644
index 0000000000..069f016f8e
--- /dev/null
+++ b/types/barbellweights/index.d.ts
@@ -0,0 +1,22 @@
+// Type definitions for barbellweights 0.4
+// Project: https://github.com/toddhibbs/barbellweight#readme
+// Definitions by: evelijn <https://github.com/evelijn>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export interface options {
+    program?: string;
+    bar?: number;
+    plates?: number[];
+    warmup_round_to?: number;
+}
+
+export class BarbellWeight {
+    constructor(workingWeight: number, lift: string, options?: options);
+    getResults(): any;
+}
+
+export namespace BarbellWeight {
+    namespace BarbellWeight {
+        function getResults(): void;
+    }
+}
diff --git a/types/barbellweights/tsconfig.json b/types/barbellweights/tsconfig.json
new file mode 100644
index 0000000000..1acdbe017b
--- /dev/null
+++ b/types/barbellweights/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "barbellweights-tests.ts"
+    ]
+}
diff --git a/types/barbellweights/tslint.json b/types/barbellweights/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/barbellweights/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }