diff --git a/backend/mempool-config.sample.json b/backend/mempool-config.sample.json
index bf0e15056..781f90698 100644
--- a/backend/mempool-config.sample.json
+++ b/backend/mempool-config.sample.json
@@ -8,7 +8,8 @@
     "POLL_RATE_MS": 2000,
     "CACHE_DIR": "./cache",
     "CLEAR_PROTECTION_MINUTES": 20,
-    "RECOMMENDED_FEE_PERCENTILE": 50
+    "RECOMMENDED_FEE_PERCENTILE": 50,
+    "BLOCK_WEIGHT_UNITS": 4000000
   },
   "CORE_RPC": {
     "HOST": "127.0.0.1",
diff --git a/backend/src/api/mempool-blocks.ts b/backend/src/api/mempool-blocks.ts
index a9c91103d..592da2877 100644
--- a/backend/src/api/mempool-blocks.ts
+++ b/backend/src/api/mempool-blocks.ts
@@ -76,7 +76,7 @@ class MempoolBlocks {
     let blockSize = 0;
     let transactions: TransactionExtended[] = [];
     transactionsSorted.forEach((tx) => {
-      if (blockVSize + tx.vsize <= 1000000 || mempoolBlocks.length === MempoolBlocks.DEFAULT_PROJECTED_BLOCKS_AMOUNT - 1) {
+      if (blockVSize + tx.weight <= config.MEMPOOL.BLOCK_WEIGHT_UNITS || mempoolBlocks.length === MempoolBlocks.DEFAULT_PROJECTED_BLOCKS_AMOUNT - 1) {
         blockVSize += tx.vsize;
         blockSize += tx.size;
         transactions.push(tx);
diff --git a/backend/src/config.ts b/backend/src/config.ts
index 4a2e4f588..ee811979c 100644
--- a/backend/src/config.ts
+++ b/backend/src/config.ts
@@ -11,6 +11,7 @@ interface IConfig {
     CACHE_DIR: string;
     CLEAR_PROTECTION_MINUTES: number;
     RECOMMENDED_FEE_PERCENTILE: number;
+    BLOCK_WEIGHT_UNITS: number;
   };
   ESPLORA: {
     REST_API_URL: string;
@@ -69,6 +70,7 @@ const defaults: IConfig = {
     'CACHE_DIR': './cache',
     'CLEAR_PROTECTION_MINUTES': 20,
     'RECOMMENDED_FEE_PERCENTILE': 50,
+    'BLOCK_WEIGHT_UNITS': 4000000,
   },
   'ESPLORA': {
     'REST_API_URL': 'http://127.0.0.1:3000',
diff --git a/frontend/mempool-frontend-config.sample.json b/frontend/mempool-frontend-config.sample.json
index c737a2538..a5c9d1c07 100644
--- a/frontend/mempool-frontend-config.sample.json
+++ b/frontend/mempool-frontend-config.sample.json
@@ -9,5 +9,6 @@
   "NGINX_PROTOCOL": "http",
   "NGINX_HOSTNAME": "127.0.0.1",
   "NGINX_PORT": "80",
+  "BLOCK_WEIGHT_UNITS": 4000000,
   "BASE_MODULE": "mempool"
 }
diff --git a/frontend/src/app/components/footer/footer.component.ts b/frontend/src/app/components/footer/footer.component.ts
index adfeece6a..17ecd78d8 100644
--- a/frontend/src/app/components/footer/footer.component.ts
+++ b/frontend/src/app/components/footer/footer.component.ts
@@ -64,7 +64,7 @@ export class FooterComponent implements OnInit {
 
           return {
             size: size,
-            blocks: Math.ceil(vsize / 1000000)
+            blocks: Math.ceil(vsize / this.stateService.blockVSize)
           };
         })
       );
diff --git a/frontend/src/app/components/mempool-block/mempool-block.component.html b/frontend/src/app/components/mempool-block/mempool-block.component.html
index dfafb9241..744058614 100644
--- a/frontend/src/app/components/mempool-block/mempool-block.component.html
+++ b/frontend/src/app/components/mempool-block/mempool-block.component.html
@@ -32,7 +32,7 @@
               <td i18n="mempool-block.size">Size</td>
               <td>
                 <div class="progress">
-                  <div class="progress-bar progress-mempool {{ (network$ | async) }}" role="progressbar" [ngStyle]="{'width': (mempoolBlock.blockVSize / 1000000) * 100 + '%' }"></div>
+                  <div class="progress-bar progress-mempool {{ (network$ | async) }}" role="progressbar" [ngStyle]="{'width': (mempoolBlock.blockVSize / stateService.blockVSize) * 100 + '%' }"></div>
                   <div class="progress-text" [innerHTML]="mempoolBlock.blockSize | bytes: 2"></div>
                 </div>
               </td>
diff --git a/frontend/src/app/components/mempool-block/mempool-block.component.ts b/frontend/src/app/components/mempool-block/mempool-block.component.ts
index 2e9365298..ead56736c 100644
--- a/frontend/src/app/components/mempool-block/mempool-block.component.ts
+++ b/frontend/src/app/components/mempool-block/mempool-block.component.ts
@@ -21,7 +21,7 @@ export class MempoolBlockComponent implements OnInit, OnDestroy {
 
   constructor(
     private route: ActivatedRoute,
-    private stateService: StateService,
+    public stateService: StateService,
     private seoService: SeoService,
     private websocketService: WebsocketService,
   ) { }
@@ -66,7 +66,7 @@ export class MempoolBlockComponent implements OnInit, OnDestroy {
   }
 
   getOrdinal(mempoolBlock: MempoolBlock): string {
-    const blocksInBlock = Math.ceil(mempoolBlock.blockVSize / 1000000);
+    const blocksInBlock = Math.ceil(mempoolBlock.blockVSize / this.stateService.blockVSize);
     if (this.mempoolBlockIndex === 0) {
       return $localize`:@@mempool-block.next.block:Next block`;
     } else if (this.mempoolBlockIndex === this.stateService.env.KEEP_BLOCKS_AMOUNT - 1 && blocksInBlock > 1) {
diff --git a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.html b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.html
index 4ffef5c91..97f47432f 100644
--- a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.html
+++ b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.html
@@ -16,7 +16,7 @@
             <ng-template #transactionsSingular let-i i18n="shared.transaction-count.singular">{{ i }} transaction</ng-template>
             <ng-template #transactionsPlural let-i i18n="shared.transaction-count.plural">{{ i }} transactions</ng-template>
           </div>
-          <div class="time-difference" *ngIf="projectedBlock.blockVSize <= 1000000; else mergedBlock">
+          <div class="time-difference" *ngIf="projectedBlock.blockVSize <= stateService.blockVSize; else mergedBlock">
             <ng-template [ngIf]="network === 'liquid'" [ngIfElse]="timeDiffMainnet">
               <app-time-until [time]="(1 * i) + now + 61000" [fastRender]="false" [fixedRender]="true"></app-time-until>
             </ng-template>
@@ -26,7 +26,7 @@
           </div>
           <ng-template #mergedBlock>
             <div class="time-difference">
-              <b>(<ng-container *ngTemplateOutlet="blocksPlural; context: {$implicit: projectedBlock.blockVSize / 1000000 | ceil }"></ng-container>)</b>
+              <b>(<ng-container *ngTemplateOutlet="blocksPlural; context: {$implicit: projectedBlock.blockVSize / stateService.blockVSize | ceil }"></ng-container>)</b>
               <ng-template #blocksPlural let-i i18n="shared.blocks">{{ i }} <span class="shared-block">blocks</span></ng-template>
             </div>
           </ng-template>
diff --git a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts
index 7846b9b71..607bcce61 100644
--- a/frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts
+++ b/frontend/src/app/components/mempool-blocks/mempool-blocks.component.ts
@@ -44,7 +44,7 @@ export class MempoolBlocksComponent implements OnInit, OnDestroy {
 
   constructor(
     private router: Router,
-    private stateService: StateService,
+    public stateService: StateService,
     private cd: ChangeDetectorRef,
   ) { }
 
@@ -202,7 +202,7 @@ export class MempoolBlocksComponent implements OnInit, OnDestroy {
   }
 
   getStyleForMempoolBlock(mempoolBlock: MempoolBlock, index: number) {
-    const emptyBackgroundSpacePercentage = Math.max(100 - mempoolBlock.blockVSize / 1000000 * 100, 0);
+    const emptyBackgroundSpacePercentage = Math.max(100 - mempoolBlock.blockVSize / this.stateService.blockVSize * 100, 0);
     const usedBlockSpace = 100 - emptyBackgroundSpacePercentage;
     const backgroundGradients = [`repeating-linear-gradient(to right,  #554b45, #554b45 ${emptyBackgroundSpacePercentage}%`];
     const gradientColors = [];
@@ -262,7 +262,7 @@ export class MempoolBlocksComponent implements OnInit, OnDestroy {
           const chunkPositionOffset = blockLocation * feeRangeChunkSize;
           const feePosition = feeRangeChunkSize * feeRangeIndex + chunkPositionOffset;
 
-          const blockedFilledPercentage = (block.blockVSize > 1000000 ? 1000000 : block.blockVSize) / 1000000;
+          const blockedFilledPercentage = (block.blockVSize > this.stateService.blockVSize ? this.stateService.blockVSize : block.blockVSize) / this.stateService.blockVSize;
           const arrowRightPosition = txInBlockIndex * (this.blockWidth + this.blockPadding)
             + ((1 - feePosition) * blockedFilledPercentage * this.blockWidth);
 
diff --git a/frontend/src/app/components/mempool-graph/mempool-graph.component.ts b/frontend/src/app/components/mempool-graph/mempool-graph.component.ts
index 46d11d6f1..b227c9884 100644
--- a/frontend/src/app/components/mempool-graph/mempool-graph.component.ts
+++ b/frontend/src/app/components/mempool-graph/mempool-graph.component.ts
@@ -74,7 +74,7 @@ export class MempoolGraphComponent implements OnInit, OnChanges {
         labelInterpolationFnc: (value: number): any => this.vbytesPipe.transform(value, 2, 'vB', 'MvB', true),
         offset: this.showLegend ? 160 : 60,
       },
-      plugins: this.inverted ? [Chartist.plugins.ctTargetLine({ value: 1000000 })] : []
+      plugins: this.inverted ? [Chartist.plugins.ctTargetLine({ value: this.stateService.blockVSize })] : []
     };
 
     if (this.showLegend) {
diff --git a/frontend/src/app/dashboard/dashboard.component.ts b/frontend/src/app/dashboard/dashboard.component.ts
index f6424cc62..ab84f75b9 100644
--- a/frontend/src/app/dashboard/dashboard.component.ts
+++ b/frontend/src/app/dashboard/dashboard.component.ts
@@ -207,7 +207,7 @@ export class DashboardComponent implements OnInit {
 
           return {
             size: size,
-            blocks: Math.ceil(vsize / 1000000)
+            blocks: Math.ceil(vsize / this.stateService.blockVSize)
           };
         })
       );
diff --git a/frontend/src/app/services/state.service.ts b/frontend/src/app/services/state.service.ts
index e66cc915a..00934ba5f 100644
--- a/frontend/src/app/services/state.service.ts
+++ b/frontend/src/app/services/state.service.ts
@@ -28,6 +28,7 @@ export interface Env {
   NGINX_PROTOCOL?: string;
   NGINX_HOSTNAME?: string;
   NGINX_PORT?: string;
+  BLOCK_WEIGHT_UNITS: number;
   GIT_COMMIT_HASH: string;
   PACKAGE_JSON_VERSION: string;
 }
@@ -45,6 +46,7 @@ const defaultEnv: Env = {
   'NGINX_PROTOCOL': 'http',
   'NGINX_HOSTNAME': '127.0.0.1',
   'NGINX_PORT': '80',
+  'BLOCK_WEIGHT_UNITS': 4000000,
   'GIT_COMMIT_HASH': '',
   'PACKAGE_JSON_VERSION': '',
 };
@@ -55,6 +57,7 @@ const defaultEnv: Env = {
 export class StateService {
   isBrowser: boolean = isPlatformBrowser(this.platformId);
   network = '';
+  blockVSize: number;
   env: Env;
   latestBlockHeight = 0;
 
@@ -113,6 +116,8 @@ export class StateService {
       this.network = this.env.BASE_MODULE;
       this.networkChanged$.next(this.env.BASE_MODULE);
     }
+
+    this.blockVSize = this.env.BLOCK_WEIGHT_UNITS / 4;
   }
 
   setNetworkBasedonUrl(url: string) {