diff --git a/spatial-coordinate-systems/src/lib.rs b/spatial-coordinate-systems/src/lib.rs
index 8d45335..7a8f1ad 100644
--- a/spatial-coordinate-systems/src/lib.rs
+++ b/spatial-coordinate-systems/src/lib.rs
@@ -35,6 +35,7 @@ impl Direction {
     }
 }
 
+#[derive(Debug, PartialEq)]
 pub enum Coordinate {
     DD(dd::Coordinate),
     DMS(dms::Coordinate),
@@ -63,11 +64,11 @@ impl Coordinate {
     }
 }
 
-impl TryInto<LatLon> for Coordinate {
+impl TryFrom<Coordinate> for LatLon {
     type Error = ();
 
-    fn try_into(self) -> Result<LatLon, Self::Error> {
-        match self {
+    fn try_from(value: Coordinate) -> Result<LatLon, Self::Error> {
+        match value {
             Coordinate::DD(dd) => dd.try_into().or(Err(())),
             Coordinate::DMM(dm) => dm.try_into(),
             Coordinate::DMS(dms) => dms.try_into(),
@@ -103,6 +104,31 @@ impl From<plus::Coordinate> for Coordinate {
     }
 }
 
+impl TryFrom<Coordinate> for dms::Coordinate {
+    type Error = ();
+    fn try_from(c: Coordinate) -> Result<Self, Self::Error> {
+        dms::Coordinate::try_from(LatLon::try_from(c)?)
+    }
+}
+impl TryFrom<Coordinate> for dmm::Coordinate {
+    type Error = ();
+    fn try_from(c: Coordinate) -> Result<Self, Self::Error> {
+        dmm::Coordinate::try_from(LatLon::try_from(c)?).or(Err(()))
+    }
+}
+impl TryFrom<Coordinate> for utm::Coordinate {
+    type Error = ();
+    fn try_from(c: Coordinate) -> Result<Self, Self::Error> {
+        utm::Coordinate::try_from(LatLon::try_from(c)?)
+    }
+}
+impl TryFrom<Coordinate> for plus::Coordinate {
+    type Error = ();
+    fn try_from(c: Coordinate) -> Result<Self, Self::Error> {
+        plus::Coordinate::try_from(LatLon::try_from(c)?).or(Err(()))
+    }
+}
+
 impl FromStr for Coordinate {
     type Err = ();
 
@@ -110,3 +136,39 @@ impl FromStr for Coordinate {
         Self::parse(i).map_err(|_| ()).map(|(_, ret)| ret)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_general() {
+        assert_eq!(
+            Coordinate::from_str("0.000000 100.500278"),
+            Ok(Coordinate::DD(dd::Coordinate {
+                lat: 0.0,
+                lon: 100.500278
+            }))
+        );
+
+        assert_eq!(
+            Coordinate::from_str("47N 666962.588 0.000"),
+            Ok(Coordinate::UTM(utm::Coordinate {
+                zone_num: 47,
+                zone_letter: 'N',
+                easting: 666962.588,
+                northing: 0.0
+            }))
+        );
+
+        assert_eq!(
+            dms::Coordinate::try_from(Coordinate::from_str("0.000000 100.500278").unwrap()),
+            dms::Coordinate::try_from(Coordinate::from_str("0.000000 100.500278").unwrap())
+        )
+
+        // assert_eq!(
+        //     LatLon::try_from(Coordinate::from_str("0.000000 100.500278").unwrap()),
+        //     LatLon::try_from(Coordinate::from_str("47N 666962.588 0.000").unwrap())
+        // )
+    }
+}
diff --git a/spatial-coordinate-systems/src/utm.rs b/spatial-coordinate-systems/src/utm.rs
index 88b861a..9f75865 100644
--- a/spatial-coordinate-systems/src/utm.rs
+++ b/spatial-coordinate-systems/src/utm.rs
@@ -1,16 +1,16 @@
 use crate::{
-    common::{parse_direction, parse_f64}, LatLon,
+    common::{parse_direction, parse_f64},
+    LatLon,
 };
 use nom::{
-    bytes::complete::{take},
+    bytes::complete::take,
     character::complete::{self, space0, space1},
     combinator::{map_opt, opt},
-    sequence::{tuple},
+    sequence::tuple,
     IResult,
 };
 use std::str::FromStr;
 
-
 #[derive(PartialEq, Debug)]
 pub struct Coordinate {
     pub zone_num: u8,
@@ -27,7 +27,7 @@ impl Coordinate {
     /// assert!(Coordinate::parse("10S 706832mE 4344683N").is_ok());
     /// assert!(Coordinate::parse("10S 706832E 4344683N").is_ok());
     /// assert!(Coordinate::parse("10S706832mE 4344683mN").is_err());
-    /// assert!(Coordinate::parse("10S 706832mE 4344683m").is_err());
+    /// assert!(Coordinate::parse("10S 706832mE 4344683m").is_ok());
     /// ```
     pub fn parse(i: &str) -> IResult<&str, Self> {
         map_opt(
@@ -39,11 +39,12 @@ impl Coordinate {
                 parse_f64,
                 // TODO: Can there be spaces around the m here or no?
                 opt(complete::char('m')),
-                parse_direction,
+                // TODO: Should I allow a direction here nor no
+                opt(parse_direction),
                 space1,
                 parse_f64,
                 opt(complete::char('m')),
-                parse_direction,
+                opt(parse_direction),
             )),
             |(
                 zone_num,