diff --git a/Example/Tests/NumberScalar/EthToWeiTests.swift b/Example/Tests/NumberScalar/EthToWeiTests.swift
new file mode 100644
index 0000000..8426c31
--- /dev/null
+++ b/Example/Tests/NumberScalar/EthToWeiTests.swift
@@ -0,0 +1,30 @@
+//
+// This source file is part of the Web3Swift.io open source project
+// Copyright 2018 The Web3Swift Authors
+// Licensed under Apache License v2.0
+//
+// EthToWeiTests.swift
+//
+// Created by Timofey Solonin on 08/06/2018
+//
+
+import Nimble
+import Quick
+@testable import Web3Swift
+
+final class EthToWeiTests: XCTestCase {
+
+    func testEthToWeiIsConvertedCorrectly() {
+        expect{
+            try HexAsDecimalString(
+                hex: EthToWei(
+                    amount: 1
+                )
+            ).value()
+        }.to(
+            equal("1000000000000000000"),
+            description: "1 ether is expected to be equal to 1000000000000000000 wei"
+        )
+    }
+
+}
\ No newline at end of file
diff --git a/Example/Web3Swift.xcodeproj/project.pbxproj b/Example/Web3Swift.xcodeproj/project.pbxproj
index 23f4e98..331ea08 100644
--- a/Example/Web3Swift.xcodeproj/project.pbxproj
+++ b/Example/Web3Swift.xcodeproj/project.pbxproj
@@ -117,6 +117,7 @@
 		584FACBD6ABDDB76A219D2E7 /* IntegerTypeSizeTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 584FA3D160E799DDD8895EC3 /* IntegerTypeSizeTests.swift */; };
 		584FACDDE9E98EDA9C414EF6 /* RandomNonceTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 584FAB47440D3CE3C6ED0684 /* RandomNonceTests.swift */; };
 		584FACEC7F5AD9060590ED93 /* URL.swift in Sources */ = {isa = PBXBuildFile; fileRef = 584FA82731B90F65C00992E6 /* URL.swift */; };
+		584FACFEB25733D90A1A0F26 /* EthToWeiTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 584FA9E48598513D93A7000E /* EthToWeiTests.swift */; };
 		584FAD2C1F95B71430856825 /* NaturalIntegerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 584FA4AD9F175F65449C2E14 /* NaturalIntegerTests.swift */; };
 		584FAD3793AFB655815DBBA6 /* ChainIDProcedureTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 584FA8BDDA8B4B1DF68FA7AA /* ChainIDProcedureTests.swift */; };
 		584FAD6A547499538A33A63B /* FirstBytesTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 584FADA4B17A275E320F82F7 /* FirstBytesTests.swift */; };
@@ -245,6 +246,7 @@
 		584FA9721120A205A9959167 /* HexStringTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = HexStringTests.swift; sourceTree = "<group>"; };
 		584FA9C0E212B75D9FFEE329 /* StatesTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = StatesTests.swift; sourceTree = "<group>"; };
 		584FA9D0D639D3F5E5025055 /* ContractDeploymentAndCallIT.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ContractDeploymentAndCallIT.swift; sourceTree = "<group>"; };
+		584FA9E48598513D93A7000E /* EthToWeiTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = EthToWeiTests.swift; sourceTree = "<group>"; };
 		584FAA2AA63184DE9EC11F74 /* EthContractCallTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = EthContractCallTests.swift; sourceTree = "<group>"; };
 		584FAA3DAF64A2A798B424AC /* DecodedABIDynamicCollectionTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DecodedABIDynamicCollectionTests.swift; sourceTree = "<group>"; };
 		584FAA56B9ACBC59A8922392 /* SizeConstrainedCollectionTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SizeConstrainedCollectionTests.swift; sourceTree = "<group>"; };
@@ -713,6 +715,7 @@
 				584FA6E27706136910DAAD74 /* UnsignedNumbersExponentiationTests.swift */,
 				584FA1881DBE9A400A529BC5 /* EthNumberTests.swift */,
 				584FAD10CFD47ACAE96F474C /* HexAsDecimalStringTests.swift */,
+				584FA9E48598513D93A7000E /* EthToWeiTests.swift */,
 			);
 			path = NumberScalar;
 			sourceTree = "<group>";
@@ -1267,6 +1270,7 @@
 				584FA5AC71FE3208939495C3 /* EthContractCallTests.swift in Sources */,
 				584FAA6740136B110E21E620 /* JSONResultStringTests.swift in Sources */,
 				584FA9958A514A58DF0BD029 /* StatesTests.swift in Sources */,
+				584FACFEB25733D90A1A0F26 /* EthToWeiTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/Web3Swift/NumberScalar/EthToWei.swift b/Web3Swift/NumberScalar/EthToWei.swift
new file mode 100644
index 0000000..7b87833
--- /dev/null
+++ b/Web3Swift/NumberScalar/EthToWei.swift
@@ -0,0 +1,73 @@
+//
+// This source file is part of the Web3Swift.io open source project
+// Copyright 2018 The Web3Swift Authors
+// Licensed under Apache License v2.0
+//
+// EthToWei.swift
+//
+// Created by Timofey Solonin on 08/06/2018
+//
+
+import Foundation
+
+//A whole amount of ether converted to an amount of wei
+public final class EthToWei: BytesScalar {
+
+    private let amount: BytesScalar
+
+    /**
+    Ctor
+
+    - parameters:
+        - amount: amount of ethereum to convert to wei
+    */
+    public init(amount: BytesScalar) {
+        self.amount = UnsignedNumbersProduct(
+            terms: [
+                amount,
+                SimpleBytes(
+                    bytes: [
+                        0x0d, 0xe0, 0xb6, 0xb3, 0xa7, 0x64, 0x00, 0x00
+                    ]
+                )
+            ]
+        )
+    }
+
+    /**
+    Ctor
+
+    - parameters:
+        - amount: amount of ethereum to convert to wei
+    */
+    public convenience init(amount: IntegerScalar) {
+        self.init(
+            amount: EthNumber(
+                value: amount
+            )
+        )
+    }
+
+    /**
+    Ctor
+
+    - parameters:
+        - amount: amount of ethereum to convert to wei
+    */
+    public convenience init(amount: Int) {
+        self.init(
+            amount: SimpleInteger(
+                integer: amount
+            )
+        )
+    }
+
+    /**
+    - returns:
+    The amount of wei in the specified amount of ether (i.e. multiplied by 10^18)
+    */
+    public func value() throws -> Data {
+        return try amount.value()
+    }
+
+}
\ No newline at end of file