diff --git a/code/game/objects/items/devices/scanners.dm b/code/game/objects/items/devices/scanners.dm
index 512ca8baad9b..778082fc46a4 100644
--- a/code/game/objects/items/devices/scanners.dm
+++ b/code/game/objects/items/devices/scanners.dm
@@ -191,7 +191,7 @@ FORENSIC SCANNER
 		user.show_message(SPAN_DANGER("Pressure: [round(env_pressure,0.1)] kPa"), 1)
 	if(env_pressure > 0)
 		user.show_message(SPAN_NOTICE("Gas Type: [env_gas]"), 1)
-		user.show_message(SPAN_NOTICE("Temperature: [round(env_temp-T0C)]°C"), 1)
+		user.show_message(SPAN_NOTICE("Temperature: [floor(env_temp-T0C)]°C"), 1)
 
 	src.add_fingerprint(user)
 	return
diff --git a/code/modules/lighting/lighting_static/static_lighting_corner.dm b/code/modules/lighting/lighting_static/static_lighting_corner.dm
index f1f5d8bfbd89..4f026e05e864 100644
--- a/code/modules/lighting/lighting_static/static_lighting_corner.dm
+++ b/code/modules/lighting/lighting_static/static_lighting_corner.dm
@@ -113,9 +113,9 @@
 	else if (largest_color_luminosity < LIGHTING_SOFT_THRESHOLD)
 		. = 0 // 0 means soft lighting.
 
-	cache_r  = floor(lum_r * ., LIGHTING_ROUND_VALUE) || LIGHTING_SOFT_THRESHOLD
-	cache_g  = floor(lum_g * ., LIGHTING_ROUND_VALUE) || LIGHTING_SOFT_THRESHOLD
-	cache_b  = floor(lum_b * ., LIGHTING_ROUND_VALUE) || LIGHTING_SOFT_THRESHOLD
+	cache_r  = round(lum_r * ., LIGHTING_ROUND_VALUE) || LIGHTING_SOFT_THRESHOLD
+	cache_g  = round(lum_g * ., LIGHTING_ROUND_VALUE) || LIGHTING_SOFT_THRESHOLD
+	cache_b  = round(lum_b * ., LIGHTING_ROUND_VALUE) || LIGHTING_SOFT_THRESHOLD
 	#else
 	cache_r  = round(lum_r * ., LIGHTING_ROUND_VALUE)
 	cache_g  = round(lum_g * ., LIGHTING_ROUND_VALUE)
diff --git a/code/modules/projectiles/guns/flamer/flamer.dm b/code/modules/projectiles/guns/flamer/flamer.dm
index c6674cc36129..b15856af1637 100644
--- a/code/modules/projectiles/guns/flamer/flamer.dm
+++ b/code/modules/projectiles/guns/flamer/flamer.dm
@@ -255,7 +255,7 @@
 	for(var/turf/turf in turfs)
 
 		if(chemical.volume < ammount_required)
-			smoke_range = round(chemical.volume / use_multiplier)
+			smoke_range = floor(chemical.volume / use_multiplier)
 
 		if(distance >= smoke_range)
 			break