diff --git a/crates/calc/src/eval.rs b/crates/calc/src/eval.rs
index fcc38c3..48e46b3 100644
--- a/crates/calc/src/eval.rs
+++ b/crates/calc/src/eval.rs
@@ -1059,10 +1059,10 @@ impl<'h> Evaluator<'h> {
         if h == 0 || w == 0 {
             return err(CellError::Ref);
         }
-        let r0 = base.range.start.row as i64 + rows;
-        let c0 = base.range.start.col as i64 + cols;
-        let (r0, r1) = if h > 0 { (r0, r0 + h - 1) } else { (r0 + h + 1, r0) };
-        let (c0, c1) = if w > 0 { (c0, c0 + w - 1) } else { (c0 + w + 1, c0) };
+        let r0 = (base.range.start.row as i64).saturating_add(rows);
+        let c0 = (base.range.start.col as i64).saturating_add(cols);
+        let (r0, r1) = if h > 0 { (r0, r0.saturating_add(h - 1)) } else { (r0.saturating_add(h + 1), r0) };
+        let (c0, c1) = if w > 0 { (c0, c0.saturating_add(w - 1)) } else { (c0.saturating_add(w + 1), c0) };
         if r0 < 0 || c0 < 0 || r1 >= MAX_ROWS as i64 || c1 >= MAX_COLS as i64 {
             return err(CellError::Ref);
         }
diff --git a/crates/calc/src/tests.rs b/crates/calc/src/tests.rs
index bfe697e..21bd681 100644
--- a/crates/calc/src/tests.rs
+++ b/crates/calc/src/tests.rs
@@ -1023,3 +1023,32 @@ fn trim_references() {
     t.set("K20", "=SUM(Q1:.Q9)");
     assert_eq!(t.get("K20"), Value::Error(CellError::Calc));
 }
+
+#[test]
+fn offset_extreme_arguments_return_ref() {
+    let wb = Workbook::new();
+    for formula in [
+        "=OFFSET(B2,1E300,0)",
+        "=OFFSET(B2,0,1E300)",
+        "=OFFSET(B2,0,0,1E300,1)",
+        "=OFFSET(B2,0,0,1,1E300)",
+        "=OFFSET(B2,-1E300,0)",
+        "=OFFSET(B2,0,-1E300)",
+        "=OFFSET(B2,0,0,-1E300,1)",
+        "=OFFSET(B2,0,0,1,-1E300)",
+        "=OFFSET(B2,1E300,0,-1E300,1)",
+        "=OFFSET(B2,0,1E300,1,-1E300)",
+        "=OFFSET(B2,-1E300,0,-1E300,1)",
+    ] {
+        assert_eq!(crate::evaluate(&wb, 0, c("D1"), formula), Value::Error(CellError::Ref), "{formula}");
+    }
+    for (formula, expected) in [
+        ("=ROW(OFFSET(B2,1.9,0))", 3.0),
+        ("=COLUMN(OFFSET(B2,0,-1.9))", 1.0),
+        ("=ROWS(OFFSET(B2,0,0,-2,1))", 2.0),
+        ("=COLUMNS(OFFSET(B2,0,0,1,-2))", 2.0),
+        ("=ROWS(OFFSET(A1,0,0,1048576,1))", 1048576.0),
+    ] {
+        assert_eq!(crate::evaluate(&wb, 0, c("D1"), formula), Value::Number(expected), "{formula}");
+    }
+}
diff --git a/crates/engine/tests/offset_overflow.rs b/crates/engine/tests/offset_overflow.rs
new file mode 100644
index 0000000..de59888
--- /dev/null
+++ b/crates/engine/tests/offset_overflow.rs
@@ -0,0 +1,24 @@
+use gridcraft_core::{CellError, CellRef, Value};
+use gridcraft_engine::Session;
+use serde_json::json;
+
+#[test]
+fn cell_set_offset_extreme_arguments_return_ref() {
+    let mut session = Session::new();
+    session.new_workbook();
+    for formula in [
+        "=OFFSET(B2,1E300,0)",
+        "=OFFSET(B2,0,1E300)",
+        "=OFFSET(B2,0,0,1E300,1)",
+        "=OFFSET(B2,0,0,1,1E300)",
+        "=OFFSET(B2,-1E300,0)",
+        "=OFFSET(B2,0,-1E300)",
+        "=OFFSET(B2,0,0,-1E300,1)",
+        "=OFFSET(B2,0,0,1,-1E300)",
+        "=OFFSET(B2,1E300,0,-1E300,1)",
+        "=OFFSET(B2,0,1E300,1,-1E300)",
+    ] {
+        session.execute("cell.set", json!({"cell": "D1", "input": formula})).unwrap();
+        assert_eq!(session.doc().unwrap().wb.sheet(0).unwrap().value(CellRef::new(0, 3)), Value::Error(CellError::Ref), "{formula}");
+    }
+}