diff --git a/src/SensorPaths.cpp b/src/SensorPaths.cpp
new file mode 100644
index 0000000..f10e60b
--- /dev/null
+++ b/src/SensorPaths.cpp
@@ -0,0 +1,54 @@
+#include <cstring>
+#include <regex>
+#include <string>
+
+namespace sensor_paths
+{
+
+// This is an allowlist of the units a sensor can measure. Should be in sync
+// with
+// phosphor-dbus-interfaces/blob/master/xyz/openbmc_project/Sensor/Value.interface.yaml#L35
+
+std::string getPathForUnits(const std::string& units)
+{
+    if (units == "DegreesC")
+    {
+        return "temperature";
+    }
+    if (units == "RPMS")
+    {
+        return "fan_tach";
+    }
+    if (units == "Volts")
+    {
+        return "voltage";
+    }
+    if (units == "Meters")
+    {
+        return "altitude";
+    }
+    if (units == "Amperes")
+    {
+        return "current";
+    }
+    if (units == "Watts")
+    {
+        return "power";
+    }
+    if (units == "Joules")
+    {
+        return "energy";
+    }
+    if (units == "Percent")
+    {
+        return "Utilization";
+    }
+    return "";
+}
+
+std::string escapePathForDbus(const std::string& name)
+{
+    return std::regex_replace(name, std::regex("[^a-zA-Z0-9_/]+"), "_");
+}
+
+} // namespace sensor_paths