diff --git a/dive.h b/dive.h
index e76b6dadf..fc82f5e43 100644
--- a/dive.h
+++ b/dive.h
@@ -179,27 +179,6 @@ static inline unsigned long C_to_mkelvin(double c)
 	return c * 1000 + 273150.5;
 }
 
-static inline int to_C(temperature_t temp)
-{
-	if (!temp.mkelvin)
-		return 0;
-	return mkelvin_to_C(temp.mkelvin) + 0.5;
-}
-
-static inline int to_F(temperature_t temp)
-{
-	if (!temp.mkelvin)
-		return 0;
-	return mkelvin_to_F(temp.mkelvin) + 0.5;
-}
-
-static inline int to_K(temperature_t temp)
-{
-	if (!temp.mkelvin)
-		return 0;
-	return (temp.mkelvin + 499)/1000;
-}
-
 static inline double psi_to_bar(double psi)
 {
 	return psi / 14.5037738;
diff --git a/profile.c b/profile.c
index 18987c274..4aa70ad11 100644
--- a/profile.c
+++ b/profile.c
@@ -894,7 +894,7 @@ static void plot_single_temp_text(struct graphics_context *gc, int sec, int mkel
 
 	deg = get_temp_units(mkelvin, &unit);
 
-	plot_text(gc, &tro, sec, mkelvin, "%d%s", (int)(deg + 0.5), unit);
+	plot_text(gc, &tro, sec, mkelvin, "%.2g%s", deg, unit);
 }
 
 static void plot_temperature_text(struct graphics_context *gc, struct plot_info *pi)