diff --git a/include/fmt/format.h b/include/fmt/format.h
index 92826799..536af047 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -1734,6 +1734,7 @@ FMT_CONSTEXPR inline fp operator*(fp x, fp y) {
 }
 
 template <typename T = void> struct basic_data {
+  // DEPRECATED!
   // Normalized 64-bit significands of pow(10, k), for k = -348, -340, ..., 340.
   // These are generated by support/compute-powers.py.
   static constexpr uint64_t pow10_significands[87] = {
@@ -1772,6 +1773,7 @@ template <typename T = void> struct basic_data {
 #  pragma GCC diagnostic push
 #  pragma GCC diagnostic ignored "-Wnarrowing"
 #endif
+  // DEPRECATED!
   // Binary exponents of pow(10, k), for k = -348, -340, ..., 340, corresponding
   // to significands above.
   static constexpr int16_t pow10_exponents[87] = {
@@ -1817,37 +1819,9 @@ constexpr uint32_t basic_data<T>::fractional_part_rounding_thresholds[];
 // This is a struct rather than an alias to avoid shadowing warnings in gcc.
 struct data : basic_data<> {};
 
-// DEPRECATED!
-// Returns a cached power of 10 `c_k = c_k.f * pow(2, c_k.e)` such that its
-// (binary) exponent satisfies `min_exponent <= c_k.e <= min_exponent + 28`.
-FMT_CONSTEXPR inline fp get_cached_power(int min_exponent,
-                                         int& pow10_exponent) {
-  const int shift = 32;
-  // log10(2) = 0x0.4d104d427de7fbcc...
-  const int64_t significand = 0x4d104d427de7fbcc;
-  int index = static_cast<int>(
-      ((min_exponent + fp::num_significand_bits - 1) * (significand >> shift) +
-       ((int64_t(1) << shift) - 1))  // ceil
-      >> 32                          // arithmetic shift
-  );
-  // Decimal exponent of the first (smallest) cached power of 10.
-  const int first_dec_exp = -348;
-  // Difference between 2 consecutive decimal exponents in cached powers of 10.
-  const int dec_exp_step = 8;
-  index = (index - first_dec_exp - 1) / dec_exp_step + 1;
-  pow10_exponent = first_dec_exp + index * dec_exp_step;
-  // Using *(x + index) instead of x[index] avoids an issue with some compilers
-  // using the EDG frontend (e.g. nvhpc/22.3 in C++17 mode).
-  return {*(data::pow10_significands + index),
-          *(data::pow10_exponents + index)};
-}
-
-template <typename T>
+template <typename T, bool doublish = num_bits<T>() == num_bits<double>()>
 using convert_float_result =
-    conditional_t<std::is_same<T, float>::value ||
-                      std::numeric_limits<T>::digits ==
-                          std::numeric_limits<double>::digits,
-                  double, T>;
+    conditional_t<std::is_same<T, float>::value || doublish, double, T>;
 
 template <typename T>
 constexpr auto convert_float(T value) -> convert_float_result<T> {
diff --git a/test/format-impl-test.cc b/test/format-impl-test.cc
index 35e9d568..1da6cf84 100644
--- a/test/format-impl-test.cc
+++ b/test/format-impl-test.cc
@@ -196,43 +196,6 @@ TEST(fp_test, multiply) {
   EXPECT_EQ(v.e, 4 + 8 + 64);
 }
 
-TEST(fp_test, get_cached_power) {
-  using limits = std::numeric_limits<double>;
-  for (auto exp = limits::min_exponent; exp <= limits::max_exponent; ++exp) {
-    int dec_exp = 0;
-    auto power = fmt::detail::get_cached_power(exp, dec_exp);
-    bigint exact, cache(power.f);
-    if (dec_exp >= 0) {
-      exact.assign_pow10(dec_exp);
-      if (power.e <= 0)
-        exact <<= -power.e;
-      else
-        cache <<= power.e;
-      exact.align(cache);
-      cache.align(exact);
-      auto exact_str = fmt::to_string(exact);
-      auto cache_str = fmt::to_string(cache);
-      EXPECT_EQ(exact_str.size(), cache_str.size());
-      EXPECT_EQ(exact_str.substr(0, 15), cache_str.substr(0, 15));
-      int diff = cache_str[15] - exact_str[15];
-      if (diff == 1)
-        EXPECT_GT(exact_str[16], '8');
-      else
-        EXPECT_EQ(diff, 0);
-    } else {
-      cache.assign_pow10(-dec_exp);
-      cache *= power.f + 1;  // Inexact check.
-      exact = 1;
-      exact <<= -power.e;
-      exact.align(cache);
-      auto exact_str = fmt::to_string(exact);
-      auto cache_str = fmt::to_string(cache);
-      EXPECT_EQ(exact_str.size(), cache_str.size());
-      EXPECT_EQ(exact_str.substr(0, 16), cache_str.substr(0, 16));
-    }
-  }
-}
-
 TEST(fp_test, dragonbox_max_k) {
   using fmt::detail::dragonbox::floor_log10_pow2;
   using float_info = fmt::detail::dragonbox::float_info<float>;