diff --git a/cli/src/lib.rs b/cli/src/lib.rs
index 9db1458a29..cc93ae77ed 100644
--- a/cli/src/lib.rs
+++ b/cli/src/lib.rs
@@ -8,11 +8,3 @@ pub mod input_validators;
 pub mod validator_info;
 pub mod vote;
 pub mod wallet;
-
-pub(crate) fn lamports_to_sol(lamports: u64) -> f64 {
-    lamports as f64 / 2u64.pow(34) as f64
-}
-
-pub(crate) fn sol_to_lamports(sol: f64) -> u64 {
-    (sol * 2u64.pow(34) as f64) as u64
-}
diff --git a/cli/src/wallet.rs b/cli/src/wallet.rs
index bf5e7ca710..2ead43ec80 100644
--- a/cli/src/wallet.rs
+++ b/cli/src/wallet.rs
@@ -1,6 +1,5 @@
 use crate::{
-    display::println_name_value, input_parsers::*, input_validators::*, lamports_to_sol,
-    sol_to_lamports, validator_info::*, vote::*,
+    display::println_name_value, input_parsers::*, input_validators::*, validator_info::*, vote::*,
 };
 use chrono::prelude::*;
 use clap::{value_t_or_exit, App, AppSettings, Arg, ArgMatches, SubCommand};
@@ -23,6 +22,7 @@ use solana_sdk::{
     instruction_processor_utils::DecodeError,
     loader_instruction,
     message::Message,
+    native_token::{lamports_to_sol, sol_to_lamports},
     pubkey::Pubkey,
     signature::{Keypair, KeypairUtil, Signature},
     system_instruction::SystemError,
diff --git a/sdk/src/lib.rs b/sdk/src/lib.rs
index 2a2d5dd7b7..76695be2c9 100644
--- a/sdk/src/lib.rs
+++ b/sdk/src/lib.rs
@@ -10,6 +10,7 @@ pub mod instruction_processor_utils;
 pub mod loader_instruction;
 pub mod message;
 pub mod native_loader;
+pub mod native_token;
 pub mod packet;
 pub mod poh_config;
 pub mod pubkey;
diff --git a/sdk/src/native_token.rs b/sdk/src/native_token.rs
new file mode 100644
index 0000000000..b1e4d43eaf
--- /dev/null
+++ b/sdk/src/native_token.rs
@@ -0,0 +1,12 @@
+/// There are 2^34 lamports in one sol
+pub const SOL_LAMPORTS: u64 = 17_179_869_184;
+
+/// Approximately convert fractional native tokens (lamports) into native tokens (sol)
+pub fn lamports_to_sol(lamports: u64) -> f64 {
+    lamports as f64 / SOL_LAMPORTS as f64
+}
+
+/// Approximately convert native tokens (sol) into fractional native tokens (lamports)
+pub fn sol_to_lamports(sol: f64) -> u64 {
+    (sol * SOL_LAMPORTS as f64) as u64
+}