diff --git a/.internal/baseClamp.js b/.internal/baseClamp.js
deleted file mode 100644
index f6e7e7ded..000000000
--- a/.internal/baseClamp.js
+++ /dev/null
@@ -1,18 +0,0 @@
-/**
- * The base implementation of `clamp` which doesn't coerce arguments.
- *
- * @private
- * @param {number} number The number to clamp.
- * @param {number} lower The lower bound.
- * @param {number} upper The upper bound.
- * @returns {number} Returns the clamped number.
- */
-function baseClamp(number, lower, upper) {
-  if (number === number) {
-    number = number <= upper ? number : upper
-    number = number >= lower ? number : lower
-  }
-  return number
-}
-
-export default baseClamp
diff --git a/clamp.js b/clamp.js
index 0f40c0e4c..bb7075d69 100644
--- a/clamp.js
+++ b/clamp.js
@@ -1,4 +1,3 @@
-import baseClamp from './.internal/baseClamp.js'
 import toNumber from './toNumber.js'
 
 /**
@@ -19,13 +18,17 @@ import toNumber from './toNumber.js'
  * // => 5
  */
 function clamp(number, lower, upper) {
+  number = toNumber(number)
   lower = toNumber(lower)
-  lower = lower === lower ? lower : 0
-
   upper = toNumber(upper)
-  upper = upper === upper ? upper : 0
 
-  return baseClamp(toNumber(number), lower, upper)
+  lower = lower === lower ? lower : 0
+  upper = upper === upper ? upper : 0
+  if (number === number) {
+    number = number <= upper ? number : upper
+    number = number >= lower ? number : lower
+  }
+  return number
 }
 
 export default clamp
diff --git a/endsWith.js b/endsWith.js
index 3482d9c29..60736f478 100644
--- a/endsWith.js
+++ b/endsWith.js
@@ -1,4 +1,3 @@
-import baseClamp from './.internal/baseClamp.js'
 import baseToString from './.internal/baseToString.js'
 import toInteger from './toInteger.js'
 import toString from './toString.js'
@@ -29,11 +28,14 @@ function endsWith(string, target, position) {
   string = toString(string)
   target = baseToString(target)
 
-  const length = string.length
-  position = position === undefined
-    ? length
-    : baseClamp(toInteger(position), 0, length)
-
+  const { length } = string
+  position = position === undefined ? length : toInteger(position)
+  if (position < 0) {
+    position = 0
+  }
+  else if (position > length) {
+    position = length
+  }
   const end = position
   position -= target.length
   return position >= 0 && string.slice(position, end) == target
diff --git a/startsWith.js b/startsWith.js
index e6f6067e5..5174c2202 100644
--- a/startsWith.js
+++ b/startsWith.js
@@ -1,4 +1,3 @@
-import baseClamp from './.internal/baseClamp.js'
 import baseToString from './.internal/baseToString.js'
 import toInteger from './toInteger.js'
 import toString from './toString.js'
@@ -27,10 +26,15 @@ import toString from './toString.js'
  */
 function startsWith(string, target, position) {
   string = toString(string)
-  position = position == null
-    ? 0
-    : baseClamp(toInteger(position), 0, string.length)
 
+  const { length } = string
+  position = position == null ? 0 : toInteger(position)
+  if (position < 0) {
+    position = 0
+  }
+  else if (position > length) {
+    position = length
+  }
   target = baseToString(target)
   return string.slice(position, position + target.length) == target
 }
diff --git a/toLength.js b/toLength.js
index fbd9fdab8..4425c1075 100644
--- a/toLength.js
+++ b/toLength.js
@@ -1,4 +1,3 @@
-import baseClamp from './.internal/baseClamp.js'
 import toInteger from './toInteger.js'
 
 /** Used as references for the maximum length and index of an array. */
@@ -30,7 +29,17 @@ const MAX_ARRAY_LENGTH = 4294967295
  * // => 3
  */
 function toLength(value) {
-  return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0
+  if (!value) {
+    return 0
+  }
+  value = toInteger(value)
+  if (value < 0) {
+    return 0
+  }
+  if (value > MAX_ARRAY_LENGTH) {
+    return MAX_ARRAY_LENGTH
+  }
+  return value
 }
 
 export default toLength
diff --git a/toSafeInteger.js b/toSafeInteger.js
index 6242cc7c7..2cf3ee94d 100644
--- a/toSafeInteger.js
+++ b/toSafeInteger.js
@@ -1,4 +1,3 @@
-import baseClamp from './.internal/baseClamp.js'
 import toInteger from './toInteger.js'
 
 /** Used as references for various `Number` constants. */
@@ -27,9 +26,17 @@ const MAX_SAFE_INTEGER = 9007199254740991
  * // => 3
  */
 function toSafeInteger(value) {
+  if (!value) {
+    return value === 0 ? value : 0
+  }
+  value = toInteger(value)
+  if (value < -MAX_SAFE_INTEGER) {
+    return -MAX_SAFE_INTEGER
+  }
+  if (value > MAX_SAFE_INTEGER) {
+    return MAX_SAFE_INTEGER
+  }
   return value
-    ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
-    : (value === 0 ? value : 0)
 }
 
 export default toSafeInteger