diff --git a/collector/cpu_freebsd.go b/collector/cpu_freebsd.go
index e8d2fb98..dc3d6a11 100644
--- a/collector/cpu_freebsd.go
+++ b/collector/cpu_freebsd.go
@@ -138,7 +138,23 @@ func (c *statCollector) Update(ch chan<- prometheus.Metric) error {
 			}
 			continue
 		}
-		ch <- c.temp.mustNewConstMetric(float64(temp-2732)/10, lcpu)
+
+		// Temp is a signed integer in deci-degrees Kelvin.
+		// Cast uint32 to int32 and convert to float64 degrees Celsius.
+		//
+		// 2732 is used as the conversion constant for deci-degrees
+		// Kelvin, in multiple places in the kernel that feed into this
+		// sysctl, so we want to maintain consistency:
+		//
+		// sys/dev/amdtemp/amdtemp.c
+		//   #define AMDTEMP_ZERO_C_TO_K 2732
+		//
+		// sys/dev/acpica/acpi_thermal.c
+		//   #define TZ_ZEROC            2732
+		//
+		// sys/dev/coretemp/coretemp.c
+		//   #define TZ_ZEROC            2732
+		ch <- c.temp.mustNewConstMetric(float64(int32(temp)-2732)/10, lcpu)
 	}
 	return err
 }