diff --git a/packages/web-components/fast-foundation/src/number-field/number-field.pw.spec.ts b/packages/web-components/fast-foundation/src/number-field/number-field.pw.spec.ts
index 6c993f8b2d6..babfeffe309 100644
--- a/packages/web-components/fast-foundation/src/number-field/number-field.pw.spec.ts
+++ b/packages/web-components/fast-foundation/src/number-field/number-field.pw.spec.ts
@@ -333,6 +333,24 @@ test.describe("NumberField", () => {
         await expect(control).toHaveValue("");
     });
 
+    test("should allow only one e entry", async ({ page }) => {
+        const value = "11e111e1e1e1e1e1";
+
+        const expectedValue = "11e11111111";
+
+        await page.goto(fixtureURL("number-field--number-field"));
+
+        const element = page.locator("fast-number-field");
+
+        const control = element.locator(".control");
+
+        await element.type(value);
+
+        await expect(element).toHaveJSProperty("value", expectedValue);
+
+        await expect(control).toHaveValue(expectedValue);
+    });
+
     test('should set the `step` property to "1" by default', async () => {
         await root.evaluate(node => {
             node.innerHTML = /* html */ `
diff --git a/packages/web-components/fast-foundation/src/number-field/number-field.ts b/packages/web-components/fast-foundation/src/number-field/number-field.ts
index dc6a0f0352e..12bdbf9d479 100644
--- a/packages/web-components/fast-foundation/src/number-field/number-field.ts
+++ b/packages/web-components/fast-foundation/src/number-field/number-field.ts
@@ -339,7 +339,7 @@ export class FASTNumberField extends FormAssociatedNumberField {
      * @internal
      */
     public handleTextInput(): void {
-        this.field.value = this.field.value.replace(/[^0-9\-+e.]/g, "");
+        this.control.value = this.control.value.replace(/[^0-9\-+e.]|(?<=e.*)e/g, "");
         this.isUserInput = true;
         this.value = this.field.value;
     }
@@ -354,6 +354,18 @@ export class FASTNumberField extends FormAssociatedNumberField {
      * @internal
      */
     public handleChange(): void {
+        this.value = this.value.toLowerCase();
+        this.value = this.value.replace(/(?<=e.*)e/g, "");
+        const parts = this.value.split("e");
+        if (parts.length > 1) {
+            let base = parts[0];
+            let exponent = parts[1];
+
+            base = base === "" && exponent !== "" ? "0" : base;
+            exponent = exponent.replace(/[^0-9\-+]/g, "");
+            this.value = base + (exponent !== "" ? "e" + exponent : "");
+            this.control.value = this.value;
+        }
         this.$emit("change");
     }