DevExtreme React - Equally-Sized Pies
The PieChart widget comprises of a pie and other elements which can affect the pie's size. This means that pies in several side-by-side PieCharts may differ in size. Collect all these widgets in a single size group by setting their sizeGroup options to identical values to avoid this.
jQuery
$(function() {
    $("#pieChartContainer1").dxPieChart({
        // ...
        sizeGroup: "pies"
    });
    $("#pieChartContainer2").dxPieChart({
        // ...
        sizeGroup: "pies"
    });
});Angular
<dx-pie-chart ...
    id="pieChartContainer1"
    sizeGroup="pies">
</dx-pie-chart>
<dx-pie-chart ...
    id="pieChartContainer2"
    sizeGroup="pies">
</dx-pie-chart>
import { DxPieChartModule } from 'devextreme-angular';
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxPieChartModule
    ],
    // ...
})The widgets should have identical layouts, that is, the same container size, title and legend position, etc. Note also that a single page can contain many size groups, but a widget can be a member of only one of them.
If you have technical questions, please create a support ticket in the DevExpress Support Center.