diff --git a/pkg/builder/payload_builder.go b/pkg/builder/payload_builder.go
index 3bd63c5..a73e2d9 100644
--- a/pkg/builder/payload_builder.go
+++ b/pkg/builder/payload_builder.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"math/big"
 	"sync"
 	"time"
 
@@ -242,11 +241,9 @@ func (b *PayloadBuilder) BuildPayloadFromAttributes(
 	var blockHash phase0.Hash32
 	copy(blockHash[:], payload.BlockHash[:])
 
-	var blockValueGwei uint64
+	var blockValueWei uint64
 	if payloadResult.BlockValue != nil {
-		// BlockValue from engine API is in wei; convert to gwei for bid values.
-		gweiValue := new(big.Int).Div(payloadResult.BlockValue, big.NewInt(1_000_000_000))
-		blockValueGwei = gweiValue.Uint64()
+		blockValueWei = payloadResult.BlockValue.Uint64()
 	}
 
 	txCount := len(payload.Transactions)
@@ -263,7 +260,7 @@ func (b *PayloadBuilder) BuildPayloadFromAttributes(
 		GasLimit:          payload.GasLimit,
 		PrevRandao:        attrs.PrevRandao,
 		FeeRecipient:      proposerFeeRecipient,
-		BlockValue:        blockValueGwei,
+		BlockValue:        blockValueWei,
 		BuildSource:       BuildSourceBlock,
 		ReadyAt:           time.Now(),
 	}
@@ -272,7 +269,7 @@ func (b *PayloadBuilder) BuildPayloadFromAttributes(
 		"slot":              attrs.ProposalSlot,
 		"block_hash":        fmt.Sprintf("%x", blockHash[:8]),
 		"parent_hash":       finalityInfo.HeadExecutionBlockHash,
-		"block_value":       blockValueGwei,
+		"block_value":       blockValueWei,
 		"has_blobs":         payloadResult.BlobsBundle != nil,
 		"has_exec_requests": len(payloadResult.ExecutionRequests) > 0,
 		"txs_in_payload":    txCount,
diff --git a/pkg/builderapi/fulu/build.go b/pkg/builderapi/fulu/build.go
index e98d969..dbbecb2 100644
--- a/pkg/builderapi/fulu/build.go
+++ b/pkg/builderapi/fulu/build.go
@@ -58,7 +58,8 @@ func BuildSignedBuilderBid(
 	value := new(uint256.Int)
 	value.SetUint64(event.BlockValue)
 	if subsidyGwei > 0 {
-		value.Add(value, new(uint256.Int).SetUint64(subsidyGwei))
+		subsidyWei := subsidyGwei * 1_000_000_000
+		value.Add(value, new(uint256.Int).SetUint64(subsidyWei))
 	}
 
 	bid := &BuilderBid{
diff --git a/pkg/builderapi/fulu/build_test.go b/pkg/builderapi/fulu/build_test.go
index 891dc52..50b1f70 100644
--- a/pkg/builderapi/fulu/build_test.go
+++ b/pkg/builderapi/fulu/build_test.go
@@ -31,7 +31,7 @@ func TestBuildSignedBuilderBid_NoSubsidy(t *testing.T) {
 	require.NoError(t, err)
 	pk := blsSigner.PublicKey()
 
-	blockValue := uint64(1_000_000) // 0.001 ETH in Gwei
+	blockValue := uint64(1_000_000_000_000_000) // 0.001 ETH in wei
 	event := minimalPayloadReadyEvent(t, blockValue)
 
 	var genesisForkVersion phase0.Version // zero version
@@ -51,8 +51,8 @@ func TestBuildSignedBuilderBid_SubsidyAdded(t *testing.T) {
 	require.NoError(t, err)
 	pk := blsSigner.PublicKey()
 
-	blockValue := uint64(500_000)
-	subsidy := uint64(1_000_000) // 0.001 ETH
+	blockValue := uint64(500_000_000_000_000) // 0.0005 ETH in wei
+	subsidy := uint64(1_000_000)              // 0.001 ETH subsidy in gwei
 	event := minimalPayloadReadyEvent(t, blockValue)
 
 	var genesisForkVersion phase0.Version // zero version
@@ -64,8 +64,8 @@ func TestBuildSignedBuilderBid_SubsidyAdded(t *testing.T) {
 	require.NotNil(t, bid.Message)
 	require.NotNil(t, bid.Message.Value)
 	assert.True(t, bid.Message.Value.IsUint64())
-	assert.Equal(t, blockValue+subsidy, bid.Message.Value.Uint64(),
-		"bid value should be block_value + subsidy")
+	assert.Equal(t, blockValue+subsidy*1_000_000_000, bid.Message.Value.Uint64(),
+		"bid value should be block_value_wei + subsidy_gwei_converted_to_wei")
 }
 
 func minimalPayloadReadyEvent(t *testing.T, blockValue uint64) *builder.PayloadReadyEvent {
diff --git a/pkg/builderapi/server_test.go b/pkg/builderapi/server_test.go
index 704b120..2c1c8a4 100644
--- a/pkg/builderapi/server_test.go
+++ b/pkg/builderapi/server_test.go
@@ -239,7 +239,7 @@ func TestGetHeader_SubsidyInBidValue(t *testing.T) {
 		ParentBlockHash: parentHash,
 		BlockHash:       phase0.Hash32(payload.BlockHash),
 		Payload:         payload,
-		BlockValue:      500_000, // 0.0005 ETH in Gwei
+		BlockValue:      500_000_000_000_000, // 0.0005 ETH in wei
 	}
 	cache.Store(event)
 	mock := &mockPayloadCacheProvider{cache: cache}
@@ -266,8 +266,8 @@ func TestGetHeader_SubsidyInBidValue(t *testing.T) {
 		} `json:"data"`
 	}
 	require.NoError(t, json.NewDecoder(rec.Body).Decode(&resp))
-	// block_value 500_000 + subsidy 1_000_000 = 1_500_000
-	assert.Equal(t, "1500000", resp.Data.Message.Value, "bid value should be block_value + subsidy")
+	// block_value 500_000_000_000_000 wei + subsidy 1_000_000 gwei (= 1_000_000_000_000_000 wei) = 1_500_000_000_000_000 wei
+	assert.Equal(t, "1500000000000000", resp.Data.Message.Value, "bid value should be block_value_wei + subsidy_wei")
 }
 
 // TestSubmitBlindedBlockV2_InvalidJSON returns 400 for invalid JSON body.
diff --git a/pkg/epbs/scheduler.go b/pkg/epbs/scheduler.go
index eea34d9..2d35c81 100644
--- a/pkg/epbs/scheduler.go
+++ b/pkg/epbs/scheduler.go
@@ -213,7 +213,8 @@ func (s *Scheduler) checkSlotForBidding(ctx context.Context, slot phase0.Slot, n
 
 	// Calculate bid value.
 	// Start from block value with BidMinAmount as a floor.
-	bidBase := payload.BlockValue
+	// BlockValue is in wei; BidMinAmount/BidIncrease/P2PBidSubsidy are in gwei.
+	bidBase := payload.BlockValue / 1_000_000_000
 	if s.cfg.BidMinAmount > bidBase {
 		bidBase = s.cfg.BidMinAmount
 	}