diff --git a/packages/bcp/src/encode.spec.ts b/packages/bcp/src/encode.spec.ts
index 0e239aa4..26aac966 100644
--- a/packages/bcp/src/encode.spec.ts
+++ b/packages/bcp/src/encode.spec.ts
@@ -14,12 +14,12 @@ import {
 import { Encoding } from "@iov/encoding";
 
 import {
-  amountToBankCoin,
   buildSignedTx,
   buildUnsignedTx,
   encodeFee,
   encodeFullSignature,
   encodePubkey,
+  toBankCoin,
   toErc20Amount,
 } from "./encode";
 import { BankTokens, Erc20Token } from "./types";
@@ -107,9 +107,9 @@ describe("encode", () => {
     });
   });
 
-  describe("amountToBankCoin", () => {
+  describe("toBankCoin", () => {
     it("encodes an amount", () => {
-      expect(amountToBankCoin(defaultAmount, defaultTokens)).toEqual({
+      expect(toBankCoin(defaultAmount, defaultTokens)).toEqual({
         denom: "uatom",
         amount: "11657995",
       });
diff --git a/packages/bcp/src/encode.ts b/packages/bcp/src/encode.ts
index f1a61b65..1cf8a300 100644
--- a/packages/bcp/src/encode.ts
+++ b/packages/bcp/src/encode.ts
@@ -41,7 +41,7 @@ export function toErc20Amount(amount: Amount, erc20Token: Erc20Token): string {
   return amount.quantity;
 }
 
-export function amountToBankCoin(amount: Amount, tokens: BankTokens): types.Coin {
+export function toBankCoin(amount: Amount, tokens: BankTokens): types.Coin {
   const match = tokens.find(token => token.ticker === amount.tokenTicker);
   if (!match) throw Error(`unknown ticker: ${amount.tokenTicker}`);
   if (match.fractionalDigits !== amount.fractionalDigits) {
@@ -63,7 +63,7 @@ export function encodeFee(fee: Fee, tokens: BankTokens): types.StdFee {
     throw new Error("Cannot encode fee without gas limit");
   }
   return {
-    amount: [amountToBankCoin(fee.tokens, tokens)],
+    amount: [toBankCoin(fee.tokens, tokens)],
     gas: fee.gasLimit,
   };
 }
@@ -99,7 +99,7 @@ export function buildUnsignedTx(
             value: {
               from_address: tx.sender,
               to_address: tx.recipient,
-              amount: [amountToBankCoin(tx.amount, bankTokens)],
+              amount: [toBankCoin(tx.amount, bankTokens)],
             },
           },
         ],
diff --git a/packages/bcp/types/encode.d.ts b/packages/bcp/types/encode.d.ts
index fe974fc0..bf6d0410 100644
--- a/packages/bcp/types/encode.d.ts
+++ b/packages/bcp/types/encode.d.ts
@@ -3,7 +3,7 @@ import { Amount, Fee, FullSignature, PubkeyBundle, SignedTransaction, UnsignedTr
 import { BankTokens, Erc20Token } from "./types";
 export declare function encodePubkey(pubkey: PubkeyBundle): types.PubKey;
 export declare function toErc20Amount(amount: Amount, erc20Token: Erc20Token): string;
-export declare function amountToBankCoin(amount: Amount, tokens: BankTokens): types.Coin;
+export declare function toBankCoin(amount: Amount, tokens: BankTokens): types.Coin;
 export declare function encodeFee(fee: Fee, tokens: BankTokens): types.StdFee;
 export declare function encodeFullSignature(fullSignature: FullSignature): types.StdSignature;
 export declare function buildUnsignedTx(