diff --git a/packages/cli/examples/simulate.ts b/packages/cli/examples/simulate.ts
index 3bec3df2..c01c6119 100644
--- a/packages/cli/examples/simulate.ts
+++ b/packages/cli/examples/simulate.ts
@@ -34,6 +34,16 @@ const client = await SigningStargateClient.connectWithSigner(rpcEndpoint, wallet
   console.log("Successfully broadcasted:", result);
 }
 
+// Send transaction (using sendTokens with auto gas and custom muliplier)
+{
+  const recipient = "cosmos1xv9tklw7d82sezh9haa573wufgy59vmwe6xxe5";
+  const amount = coins(1234567, "ucosm");
+  const memo = "With simulate";
+  const result = await client.sendTokens(account.address, recipient, amount, 1.2, memo);
+  assertIsBroadcastTxSuccess(result);
+  console.log("Successfully broadcasted:", result);
+}
+
 // Send transaction (using sendTokens with manual gas)
 {
   const recipient = "cosmos1xv9tklw7d82sezh9haa573wufgy59vmwe6xxe5";
@@ -72,6 +82,24 @@ const client = await SigningStargateClient.connectWithSigner(rpcEndpoint, wallet
   console.log("Successfully broadcasted:", result);
 }
 
+// Send transaction (using signAndBroadcast with auto gas and custom muliplier)
+{
+  const recipient = "cosmos1xv9tklw7d82sezh9haa573wufgy59vmwe6xxe5";
+  const amount = coins(1234567, "ucosm");
+  const sendMsg: MsgSendEncodeObject = {
+    typeUrl: "/cosmos.bank.v1beta1.MsgSend",
+    value: {
+      fromAddress: account.address,
+      toAddress: recipient,
+      amount: amount,
+    },
+  };
+  const memo = "With simulate";
+  const result = await client.signAndBroadcast(account.address, [sendMsg], 1.4, memo);
+  assertIsBroadcastTxSuccess(result);
+  console.log("Successfully broadcasted:", result);
+}
+
 // Send transaction (using signAndBroadcast with manual gas)
 {
   const recipient = "cosmos1xv9tklw7d82sezh9haa573wufgy59vmwe6xxe5";
diff --git a/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts b/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
index b8465523..0e6582b7 100644
--- a/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
+++ b/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
@@ -224,7 +224,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
   public async upload(
     senderAddress: string,
     wasmCode: Uint8Array,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<UploadResult> {
     const compressed = pako.gzip(wasmCode, { level: 9 });
@@ -258,7 +258,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     codeId: number,
     msg: Record<string, unknown>,
     label: string,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     options: InstantiateOptions = {},
   ): Promise<InstantiateResult> {
     const instantiateContractMsg: MsgInstantiateContractEncodeObject = {
@@ -289,7 +289,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     senderAddress: string,
     contractAddress: string,
     newAdmin: string,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<ChangeAdminResult> {
     const updateAdminMsg: MsgUpdateAdminEncodeObject = {
@@ -313,7 +313,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
   public async clearAdmin(
     senderAddress: string,
     contractAddress: string,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<ChangeAdminResult> {
     const clearAdminMsg: MsgClearAdminEncodeObject = {
@@ -338,7 +338,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     contractAddress: string,
     codeId: number,
     migrateMsg: Record<string, unknown>,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<MigrateResult> {
     const migrateContractMsg: MsgMigrateContractEncodeObject = {
@@ -364,7 +364,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     senderAddress: string,
     contractAddress: string,
     msg: Record<string, unknown>,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
     funds?: readonly Coin[],
   ): Promise<ExecuteResult> {
@@ -391,7 +391,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     senderAddress: string,
     recipientAddress: string,
     amount: readonly Coin[],
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const sendMsg: MsgSendEncodeObject = {
@@ -409,7 +409,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     delegatorAddress: string,
     validatorAddress: string,
     amount: Coin,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const delegateMsg: MsgDelegateEncodeObject = {
@@ -423,7 +423,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     delegatorAddress: string,
     validatorAddress: string,
     amount: Coin,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const undelegateMsg: MsgUndelegateEncodeObject = {
@@ -436,7 +436,7 @@ export class SigningCosmWasmClient extends CosmWasmClient {
   public async withdrawRewards(
     delegatorAddress: string,
     validatorAddress: string,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const withdrawDelegatorRewardMsg: MsgWithdrawDelegatorRewardEncodeObject = {
@@ -457,14 +457,15 @@ export class SigningCosmWasmClient extends CosmWasmClient {
   public async signAndBroadcast(
     signerAddress: string,
     messages: readonly EncodeObject[],
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     let usedFee: StdFee;
-    if (fee == "auto") {
+    if (fee == "auto" || typeof fee === "number") {
       assertDefined(this.gasPrice, "Gas price must be set in the client options when auto gas is used.");
       const gasEstimation = await this.simulate(signerAddress, messages, memo);
-      usedFee = calculateFee(Math.round(gasEstimation * 1.3), this.gasPrice);
+      const muliplier = typeof fee === "number" ? fee : 1.3;
+      usedFee = calculateFee(Math.round(gasEstimation * muliplier), this.gasPrice);
     } else {
       usedFee = fee;
     }
diff --git a/packages/stargate/src/signingstargateclient.ts b/packages/stargate/src/signingstargateclient.ts
index ec8d55af..bb8895b0 100644
--- a/packages/stargate/src/signingstargateclient.ts
+++ b/packages/stargate/src/signingstargateclient.ts
@@ -208,7 +208,7 @@ export class SigningStargateClient extends StargateClient {
     senderAddress: string,
     recipientAddress: string,
     amount: readonly Coin[],
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const sendMsg: MsgSendEncodeObject = {
@@ -226,7 +226,7 @@ export class SigningStargateClient extends StargateClient {
     delegatorAddress: string,
     validatorAddress: string,
     amount: Coin,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const delegateMsg: MsgDelegateEncodeObject = {
@@ -244,7 +244,7 @@ export class SigningStargateClient extends StargateClient {
     delegatorAddress: string,
     validatorAddress: string,
     amount: Coin,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const undelegateMsg: MsgUndelegateEncodeObject = {
@@ -261,7 +261,7 @@ export class SigningStargateClient extends StargateClient {
   public async withdrawRewards(
     delegatorAddress: string,
     validatorAddress: string,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const withdrawMsg: MsgWithdrawDelegatorRewardEncodeObject = {
@@ -283,7 +283,7 @@ export class SigningStargateClient extends StargateClient {
     timeoutHeight: Height | undefined,
     /** timeout in seconds */
     timeoutTimestamp: number | undefined,
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     const timeoutTimestampNanoseconds = timeoutTimestamp
@@ -307,14 +307,15 @@ export class SigningStargateClient extends StargateClient {
   public async signAndBroadcast(
     signerAddress: string,
     messages: readonly EncodeObject[],
-    fee: StdFee | "auto",
+    fee: StdFee | "auto" | number,
     memo = "",
   ): Promise<BroadcastTxResponse> {
     let usedFee: StdFee;
-    if (fee == "auto") {
+    if (fee == "auto" || typeof fee === "number") {
       assertDefined(this.gasPrice, "Gas price must be set in the client options when auto gas is used.");
       const gasEstimation = await this.simulate(signerAddress, messages, memo);
-      usedFee = calculateFee(Math.round(gasEstimation * 1.3), this.gasPrice);
+      const muliplier = typeof fee === "number" ? fee : 1.3;
+      usedFee = calculateFee(Math.round(gasEstimation * muliplier), this.gasPrice);
     } else {
       usedFee = fee;
     }