diff --git a/firmware/common/utility.cpp b/firmware/common/utility.cpp
index 8c1dce72f..7959eba09 100644
--- a/firmware/common/utility.cpp
+++ b/firmware/common/utility.cpp
@@ -73,6 +73,15 @@ float fast_log2(const float val) {
 	return log_2;
 }
 
+float fast_pow2(const float val) {
+	union {
+		float f;
+		uint32_t n;
+	} u;
+	u.n = val * 8388608 + (0x3f800000 - 60801 * 8);
+	return u.f;
+}
+
 float complex16_mag_squared_to_dbv_norm(const float c16_mag_squared) {
 	constexpr float input_component_max = 32768;
 	constexpr float mag2_max = (input_component_max * input_component_max) * 2;
diff --git a/firmware/common/utility.hpp b/firmware/common/utility.hpp
index 4c153a9fd..a23ad3e28 100644
--- a/firmware/common/utility.hpp
+++ b/firmware/common/utility.hpp
@@ -70,6 +70,7 @@ constexpr size_t log_2(const size_t n, const size_t p = 0) {
 }
 
 float fast_log2(const float val);
+float fast_pow2(const float val);
 
 float complex16_mag_squared_to_dbv_norm(const float c16_mag_squared);