diff --git a/esphome/components/at581x/__init__.py b/esphome/components/at581x/__init__.py
index 34e6570628..4923491f0c 100644
--- a/esphome/components/at581x/__init__.py
+++ b/esphome/components/at581x/__init__.py
@@ -173,8 +173,10 @@ async def at581x_settings_to_code(config, action_id, template_arg, args):
         cg.add(var.set_hw_frontend_reset(template_))
 
     if freq := config.get(CONF_FREQUENCY):
-        template_ = await cg.templatable(freq, args, float)
-        template_ = int(template_ / 1000000)
+        if cg.is_template(freq):
+            template_ = await cg.templatable(freq, args, cg.int32)
+        else:
+            template_ = int(freq / 1000000)
         cg.add(var.set_frequency(template_))
 
     if (sens_dist := config.get(CONF_SENSING_DISTANCE)) is not None:
@@ -182,31 +184,19 @@ async def at581x_settings_to_code(config, action_id, template_arg, args):
         cg.add(var.set_sensing_distance(template_))
 
     if selfcheck := config.get(CONF_POWERON_SELFCHECK_TIME):
-        template_ = await cg.templatable(selfcheck, args, float)
-        if isinstance(template_, cv.TimePeriod):
-            template_ = template_.total_milliseconds
-        template_ = int(template_)
+        template_ = await cg.templatable(selfcheck, args, cg.int32)
         cg.add(var.set_poweron_selfcheck_time(template_))
 
     if protect := config.get(CONF_PROTECT_TIME):
-        template_ = await cg.templatable(protect, args, float)
-        if isinstance(template_, cv.TimePeriod):
-            template_ = template_.total_milliseconds
-        template_ = int(template_)
+        template_ = await cg.templatable(protect, args, cg.int32)
         cg.add(var.set_protect_time(template_))
 
     if trig_base := config.get(CONF_TRIGGER_BASE):
-        template_ = await cg.templatable(trig_base, args, float)
-        if isinstance(template_, cv.TimePeriod):
-            template_ = template_.total_milliseconds
-        template_ = int(template_)
+        template_ = await cg.templatable(trig_base, args, cg.int32)
         cg.add(var.set_trigger_base(template_))
 
     if trig_keep := config.get(CONF_TRIGGER_KEEP):
-        template_ = await cg.templatable(trig_keep, args, float)
-        if isinstance(template_, cv.TimePeriod):
-            template_ = template_.total_milliseconds
-        template_ = int(template_)
+        template_ = await cg.templatable(trig_keep, args, cg.int32)
         cg.add(var.set_trigger_keep(template_))
 
     if (stage_gain := config.get(CONF_STAGE_GAIN)) is not None:
@@ -214,8 +204,10 @@ async def at581x_settings_to_code(config, action_id, template_arg, args):
         cg.add(var.set_stage_gain(template_))
 
     if power := config.get(CONF_POWER_CONSUMPTION):
-        template_ = await cg.templatable(power, args, float)
-        template_ = int(template_ * 1000000)
+        if cg.is_template(power):
+            template_ = await cg.templatable(power, args, cg.int32)
+        else:
+            template_ = int(power * 1000000)
         cg.add(var.set_power_consumption(template_))
 
     return var
diff --git a/tests/components/at581x/common.yaml b/tests/components/at581x/common.yaml
index 425be47c42..dfb3a9a05e 100644
--- a/tests/components/at581x/common.yaml
+++ b/tests/components/at581x/common.yaml
@@ -12,6 +12,11 @@ esphome:
           trigger_keep: 10s
           stage_gain: 3
           power_consumption: 70uA
+      - at581x.settings:
+          id: waveradar
+          frequency: !lambda "return 5800;"
+          poweron_selfcheck_time: !lambda "return 2000;"
+          power_consumption: !lambda "return 70;"
       - at581x.reset:
           id: waveradar