diff --git a/firmware/drivers/sdmmc_host.c b/firmware/drivers/sdmmc_host.c
index eae852bcbf..06d1509573 100644
--- a/firmware/drivers/sdmmc_host.c
+++ b/firmware/drivers/sdmmc_host.c
@@ -144,6 +144,17 @@ void sdmmc_host_set_medium_present(struct sdmmc_host *host, bool present)
 }
 #endif
 
+size_t sdmmc_host_get_bus_freq(uint32_t clock)
+{
+    switch (clock)
+    {
+    case SDMMC_BUS_CLOCK_400KHZ: return 400000;
+    case SDMMC_BUS_CLOCK_25MHZ:  return 25000000;
+    case SDMMC_BUS_CLOCK_50MHZ:  return 50000000;
+    default:                     return 0;
+    }
+}
+
 #ifdef CONFIG_STORAGE_MULTI
 static int sdmmc_host_count_drives(struct sdmmc_host **array,
                                    size_t array_size)
diff --git a/firmware/export/sdmmc_host.h b/firmware/export/sdmmc_host.h
index 30419faa0a..411d73299a 100644
--- a/firmware/export/sdmmc_host.h
+++ b/firmware/export/sdmmc_host.h
@@ -291,4 +291,10 @@ void sdmmc_host_init_medium_present(struct sdmmc_host *host, bool present) INIT_
  */
 void sdmmc_host_set_medium_present(struct sdmmc_host *host, bool present);
 
+/**
+ * Returns clock frequency in Hz for an `SDMMC_BUS_CLOCK_*` constant.
+ * Returns zero if fed an invalid constant.
+ */
+size_t sdmmc_host_get_bus_freq(uint32_t clock);
+
 #endif /* __SDMMC_HOST_H__ */