diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -137,6 +137,7 @@
 	coins.cpp
 	compressor.cpp
 	dstencode.cpp
+	feerate.cpp
 	globals.cpp
 	core_read.cpp
 	core_write.cpp
diff --git a/src/Makefile.am b/src/Makefile.am
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -304,6 +304,7 @@
   consensus/merkle.h \
   consensus/params.h \
   consensus/validation.h \
+  feerate.h \
   hash.cpp \
   hash.h \
   prevector.h \
@@ -345,6 +346,7 @@
   coins.cpp \
   compressor.cpp \
   dstencode.cpp \
+  feerate.cpp \
   globals.cpp \
   core_read.cpp \
   core_write.cpp \
diff --git a/src/amount.h b/src/amount.h
--- a/src/amount.h
+++ b/src/amount.h
@@ -1,5 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2016 The Bitcoin Core developers
+// Copyright (c) 2017-2018 The Bitcoin developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -163,66 +164,4 @@
     return (nValue >= Amount(0) && nValue <= MAX_MONEY);
 }
 
-/**
- * Fee rate in satoshis per kilobyte: Amount / kB
- */
-class CFeeRate {
-private:
-    // unit is satoshis-per-1,000-bytes
-    Amount nSatoshisPerK;
-
-public:
-    /** Fee rate of 0 satoshis per kB */
-    CFeeRate() : nSatoshisPerK(0) {}
-    explicit CFeeRate(const Amount _nSatoshisPerK)
-        : nSatoshisPerK(_nSatoshisPerK) {}
-    /**
-     * Constructor for a fee rate in satoshis per kB. The size in bytes must not
-     * exceed (2^63 - 1)
-     */
-    CFeeRate(const Amount nFeePaid, size_t nBytes);
-    CFeeRate(const CFeeRate &other) { nSatoshisPerK = other.nSatoshisPerK; }
-    /**
-     * Return the fee in satoshis for the given size in bytes.
-     */
-    Amount GetFee(size_t nBytes) const;
-    /**
-     * Return the ceiling of a fee calculation in satoshis for the given size in
-     * bytes.
-     */
-    Amount GetFeeCeiling(size_t nBytes) const;
-
-    /**
-     * Return the fee in satoshis for a size of 1000 bytes
-     */
-    Amount GetFeePerK() const { return GetFee(1000); }
-    friend bool operator<(const CFeeRate &a, const CFeeRate &b) {
-        return a.nSatoshisPerK < b.nSatoshisPerK;
-    }
-    friend bool operator>(const CFeeRate &a, const CFeeRate &b) {
-        return a.nSatoshisPerK > b.nSatoshisPerK;
-    }
-    friend bool operator==(const CFeeRate &a, const CFeeRate &b) {
-        return a.nSatoshisPerK == b.nSatoshisPerK;
-    }
-    friend bool operator<=(const CFeeRate &a, const CFeeRate &b) {
-        return a.nSatoshisPerK <= b.nSatoshisPerK;
-    }
-    friend bool operator>=(const CFeeRate &a, const CFeeRate &b) {
-        return a.nSatoshisPerK >= b.nSatoshisPerK;
-    }
-    CFeeRate &operator+=(const CFeeRate &a) {
-        nSatoshisPerK += a.nSatoshisPerK;
-        return *this;
-    }
-    std::string ToString() const;
-
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream &s, Operation ser_action) {
-        READWRITE(nSatoshisPerK);
-    }
-};
-
 #endif //  BITCOIN_AMOUNT_H
diff --git a/src/amount.cpp b/src/amount.cpp
--- a/src/amount.cpp
+++ b/src/amount.cpp
@@ -1,5 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2016 The Bitcoin Core developers
+// Copyright (c) 2017-2018 The Bitcoin developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -11,55 +12,4 @@
 
 std::string Amount::ToString() const {
     return strprintf("%d.%08d %s", *this / COIN, *this % COIN, CURRENCY_UNIT);
-}
-
-CFeeRate::CFeeRate(const Amount nFeePaid, size_t nBytes_) {
-    assert(nBytes_ <= uint64_t(std::numeric_limits<int64_t>::max()));
-    int64_t nSize = int64_t(nBytes_);
-
-    if (nSize > 0) {
-        nSatoshisPerK = 1000 * nFeePaid / nSize;
-    } else {
-        nSatoshisPerK = Amount(0);
-    }
-}
-
-template <bool ceil>
-static Amount GetFee(size_t nBytes_, Amount nSatoshisPerK) {
-    assert(nBytes_ <= uint64_t(std::numeric_limits<int64_t>::max()));
-    int64_t nSize = int64_t(nBytes_);
-
-    // Ensure fee is rounded up when truncated if ceil is true.
-    Amount nFee(0);
-    if (ceil) {
-        nFee = Amount(nSize * nSatoshisPerK % 1000 > Amount(0)
-                          ? nSize * nSatoshisPerK / 1000 + Amount(1)
-                          : nSize * nSatoshisPerK / 1000);
-    } else {
-        nFee = nSize * nSatoshisPerK / 1000;
-    }
-
-    if (nFee == Amount(0) && nSize != 0) {
-        if (nSatoshisPerK > Amount(0)) {
-            nFee = Amount(1);
-        }
-        if (nSatoshisPerK < Amount(0)) {
-            nFee = Amount(-1);
-        }
-    }
-
-    return nFee;
-}
-
-Amount CFeeRate::GetFee(size_t nBytes) const {
-    return ::GetFee<false>(nBytes, nSatoshisPerK);
-}
-
-Amount CFeeRate::GetFeeCeiling(size_t nBytes) const {
-    return ::GetFee<true>(nBytes, nSatoshisPerK);
-}
-
-std::string CFeeRate::ToString() const {
-    return strprintf("%d.%08d %s/kB", nSatoshisPerK / COIN,
-                     nSatoshisPerK % COIN, CURRENCY_UNIT);
-}
+}
\ No newline at end of file
diff --git a/src/config.h b/src/config.h
--- a/src/config.h
+++ b/src/config.h
@@ -6,6 +6,7 @@
 #define BITCOIN_CONFIG_H
 
 #include "amount.h"
+#include "feerate.h"
 
 #include <boost/noncopyable.hpp>
 
diff --git a/src/feerate.h b/src/feerate.h
new file mode 100644
--- /dev/null
+++ b/src/feerate.h
@@ -0,0 +1,80 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2016 The Bitcoin Core developers
+// Copyright (c) 2017-2018 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_FEERATE_H
+#define BITCOIN_FEERATE_H
+
+#include "amount.h"
+#include "serialize.h"
+
+#include <cstdlib>
+#include <ostream>
+#include <string>
+#include <type_traits>
+
+/**
+ * Fee rate in satoshis per kilobyte: Amount / kB
+ */
+class CFeeRate {
+private:
+    // unit is satoshis-per-1,000-bytes
+    Amount nSatoshisPerK;
+
+public:
+    /** Fee rate of 0 satoshis per kB */
+    CFeeRate() : nSatoshisPerK(0) {}
+    explicit CFeeRate(const Amount _nSatoshisPerK)
+        : nSatoshisPerK(_nSatoshisPerK) {}
+    /**
+     * Constructor for a fee rate in satoshis per kB. The size in bytes must not
+     * exceed (2^63 - 1)
+     */
+    CFeeRate(const Amount nFeePaid, size_t nBytes);
+    CFeeRate(const CFeeRate &other) { nSatoshisPerK = other.nSatoshisPerK; }
+    /**
+     * Return the fee in satoshis for the given size in bytes.
+     */
+    Amount GetFee(size_t nBytes) const;
+    /**
+     * Return the ceiling of a fee calculation in satoshis for the given size in
+     * bytes.
+     */
+    Amount GetFeeCeiling(size_t nBytes) const;
+
+    /**
+     * Return the fee in satoshis for a size of 1000 bytes
+     */
+    Amount GetFeePerK() const { return GetFee(1000); }
+    friend bool operator<(const CFeeRate &a, const CFeeRate &b) {
+        return a.nSatoshisPerK < b.nSatoshisPerK;
+    }
+    friend bool operator>(const CFeeRate &a, const CFeeRate &b) {
+        return a.nSatoshisPerK > b.nSatoshisPerK;
+    }
+    friend bool operator==(const CFeeRate &a, const CFeeRate &b) {
+        return a.nSatoshisPerK == b.nSatoshisPerK;
+    }
+    friend bool operator<=(const CFeeRate &a, const CFeeRate &b) {
+        return a.nSatoshisPerK <= b.nSatoshisPerK;
+    }
+    friend bool operator>=(const CFeeRate &a, const CFeeRate &b) {
+        return a.nSatoshisPerK >= b.nSatoshisPerK;
+    }
+    CFeeRate &operator+=(const CFeeRate &a) {
+        nSatoshisPerK += a.nSatoshisPerK;
+        return *this;
+    }
+    std::string ToString() const;
+
+    ADD_SERIALIZE_METHODS;
+
+    template <typename Stream, typename Operation>
+    inline void SerializationOp(Stream &s, Operation ser_action) {
+        READWRITE(nSatoshisPerK);
+    }
+};
+
+#endif //  BITCOIN_FEERATE_H
diff --git a/src/amount.cpp b/src/feerate.cpp
copy from src/amount.cpp
copy to src/feerate.cpp
--- a/src/amount.cpp
+++ b/src/feerate.cpp
@@ -1,18 +1,14 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2016 The Bitcoin Core developers
+// Copyright (c) 2017-2018 The Bitcoin developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include "feerate.h"
 #include "amount.h"
 
 #include "tinyformat.h"
 
-const std::string CURRENCY_UNIT = "BCH";
-
-std::string Amount::ToString() const {
-    return strprintf("%d.%08d %s", *this / COIN, *this % COIN, CURRENCY_UNIT);
-}
-
 CFeeRate::CFeeRate(const Amount nFeePaid, size_t nBytes_) {
     assert(nBytes_ <= uint64_t(std::numeric_limits<int64_t>::max()));
     int64_t nSize = int64_t(nBytes_);
diff --git a/src/policy/policy.h b/src/policy/policy.h
--- a/src/policy/policy.h
+++ b/src/policy/policy.h
@@ -7,6 +7,7 @@
 #define BITCOIN_POLICY_POLICY_H
 
 #include "consensus/consensus.h"
+#include "feerate.h"
 #include "script/standard.h"
 
 #include <string>
diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -7,6 +7,7 @@
 #define BITCOIN_PRIMITIVES_TRANSACTION_H
 
 #include "amount.h"
+#include "feerate.h"
 #include "script/script.h"
 #include "serialize.h"
 #include "uint256.h"