diff --git a/pkg/freetype/computations.zig b/pkg/freetype/computations.zig
new file mode 100644
index 000000000..f3f8f9832
--- /dev/null
+++ b/pkg/freetype/computations.zig
@@ -0,0 +1,8 @@
+const std = @import("std");
+const c = @import("c.zig");
+
+/// Compute (a*b)/0x10000 with maximum accuracy. Its main use is to multiply
+/// a given value by a 16.16 fixed-point factor.
+pub fn mulFix(a: i32, b: i32) i32 {
+    return @intCast(i32, c.FT_MulFix(a, b));
+}
diff --git a/pkg/freetype/main.zig b/pkg/freetype/main.zig
index 28a80ed49..4adfeeaf4 100644
--- a/pkg/freetype/main.zig
+++ b/pkg/freetype/main.zig
@@ -1,6 +1,7 @@
 pub const c = @import("c.zig");
 pub const testing = @import("test.zig");
 pub const Library = @import("Library.zig");
+pub usingnamespace @import("computations.zig");
 pub usingnamespace @import("errors.zig");
 pub usingnamespace @import("face.zig");