diff --git a/README.md b/README.md
index 1c18022..7575fea 100644
--- a/README.md
+++ b/README.md
@@ -136,6 +136,8 @@ All resources are freely available except those with a 💲 icon.
 * [CopyPasteMathjax](https://www.copypastemathjax.com/)
 * [Finance calculators](https://www.financecharts.com/pages/5724-retirement-calculators-and-stock-market-tips)
 * [Mathcheap](https://mathcheap.xyz)
+* [Midpoint Calculator](https://midpointcalculator.co)
+* [Quartiles Calculator](https://quartilecalculator.net)
 
 ## Questions and Answers