diff --git a/src/NetscriptFunctions/Formulas.ts b/src/NetscriptFunctions/Formulas.ts
index e0d70a200..fb6c4cd56 100644
--- a/src/NetscriptFunctions/Formulas.ts
+++ b/src/NetscriptFunctions/Formulas.ts
@@ -38,6 +38,7 @@ import {
   calculateAscensionPointsGain,
 } from "../Gang/formulas/formulas";
 import { favorToRep as calculateFavorToRep, repToFavor as calculateRepToFavor } from "../Faction/formulas/favor";
+import { repFromDonation } from "../Faction/formulas/donation";
 
 export function NetscriptFormulas(player: IPlayer, workerScript: WorkerScript, helper: INetscriptHelper): IFormulas {
   const checkFormulasAccess = function (func: string): void {
@@ -57,6 +58,11 @@ export function NetscriptFormulas(player: IPlayer, workerScript: WorkerScript, h
         checkFormulasAccess("reputation.calculateRepToFavor");
         return calculateRepToFavor(rep);
       },
+      repFromDonation: function (_amount: unknown, player: any): number {
+        const amount = helper.number("repFromDonation", "amount", _amount);
+        checkFormulasAccess("reputation.repFromDonation");
+        return repFromDonation(amount, player);
+      },
     },
     skills: {
       calculateSkill: function (_exp: unknown, _mult: unknown = 1): number {
diff --git a/src/ScriptEditor/NetscriptDefinitions.d.ts b/src/ScriptEditor/NetscriptDefinitions.d.ts
index d9b1bcb3e..ba24d768b 100644
--- a/src/ScriptEditor/NetscriptDefinitions.d.ts
+++ b/src/ScriptEditor/NetscriptDefinitions.d.ts
@@ -3873,6 +3873,13 @@ interface ReputationFormulas {
    * @returns The calculated faction favor.
    */
   calculateRepToFavor(rep: number): number;
+
+  /**
+   * Calculate how much rep would be gained.
+   * @param amount - Amount of money donated
+   * @param player - Player info from {@link NS.getPlayer | getPlayer}
+   */
+  repFromDonation(amount: number, player: Player): number;
 }
 
 /**