diff --git a/src/Progressable.php b/src/Progressable.php
index 4492077..3d01509 100644
--- a/src/Progressable.php
+++ b/src/Progressable.php
@@ -292,9 +292,7 @@ public function isOverallComplete(): bool {
      * Get the estimated time remaining in seconds for the overall progress.
      */
     public function getOverallEstimatedTimeRemaining(): ?int {
-        $overallProgress = $this->getOverallProgress();
-
-        if ($overallProgress >= 100) {
+        if ($this->isOverallComplete()) {
             return 0;
         }
 
@@ -304,11 +302,15 @@ public function getOverallEstimatedTimeRemaining(): ?int {
             return null;
         }
 
+        $totalProgress = array_sum(array_column($progressData, 'progress'));
+        $totalCount = count($progressData);
+        $unroundedOverallProgress = $totalCount > 0 ? $totalProgress / $totalCount : 0;
+
         $startTimes = array_filter(array_column($progressData, 'start_time'), function ($time) {
             return $time !== null;
         });
 
-        if (empty($startTimes) || $overallProgress <= 0) {
+        if (empty($startTimes) || $unroundedOverallProgress <= 0) {
             return null;
         }
 
@@ -319,10 +321,10 @@ public function getOverallEstimatedTimeRemaining(): ?int {
             return null;
         }
 
-        $rate = $overallProgress / $elapsed;
-        $remainingProgress = 100 - $overallProgress;
+        $rate = $unroundedOverallProgress / $elapsed;
+        $remainingProgress = 100 - $unroundedOverallProgress;
 
-        return (int) round($remainingProgress / $rate);
+        return (int) ceil($remainingProgress / $rate);
     }
 
     /**
@@ -352,7 +354,7 @@ public function getEstimatedTimeRemaining(): ?int {
         $rate = $this->progress / $elapsed; // progress per second
         $remainingProgress = 100 - $this->progress;
 
-        return (int) round($remainingProgress / $rate);
+        return (int) ceil($remainingProgress / $rate);
     }
 
     /**
diff --git a/tests/OverallEtaTest.php b/tests/OverallEtaTest.php
index 033ee83..1449237 100644
--- a/tests/OverallEtaTest.php
+++ b/tests/OverallEtaTest.php
@@ -74,4 +74,31 @@ public function test_overall_eta_is_zero_when_complete(): void {
 
         $this->assertEquals(0, $this->getOverallEstimatedTimeRemaining());
     }
+
+    public function test_overall_eta_does_not_return_zero_prematurely_due_to_rounding(): void {
+        Carbon::setTestNow(Carbon::now());
+
+        $uniqueName = 'test_overall_eta_rounding_'.$this->testId;
+        $this->setOverallUniqueName($uniqueName);
+        $this->setLocalKey('process_1');
+        $this->setPrecision(0);
+        $this->setLocalProgress(0); // Set start time
+
+        $obj2 = new class {
+            use Progressable;
+        };
+        $obj2->setOverallUniqueName($uniqueName);
+        $obj2->setLocalKey('process_2');
+        $obj2->setPrecision(0);
+        $obj2->setLocalProgress(0); // Set start time
+
+        Carbon::setTestNow(Carbon::now()->addSeconds(10));
+
+        $this->setLocalProgress(100);
+        $obj2->setLocalProgress(99.4);
+
+        // Overall progress with precision 0 is round((100+99.4)/2) = round(99.7) = 100
+        // It shouldn't return 0 for ETA yet!
+        $this->assertGreaterThan(0, $this->getOverallEstimatedTimeRemaining());
+    }
 }