diff --git a/app/javascript/submission_form/form.vue b/app/javascript/submission_form/form.vue
index 4468e494..280275ad 100644
--- a/app/javascript/submission_form/form.vue
+++ b/app/javascript/submission_form/form.vue
@@ -15,7 +15,7 @@
   />
   <FieldAreas
     :steps="readonlyConditionalFields.map((e) => [e])"
-    :values="readonlyConditionalFields.reduce((acc, f) => { acc[f.uuid] = (values[f.uuid] || f.default_value); return acc }, {})"
+    :values="readonlyConditionalFieldValues"
     :submitter="submitter"
     :attachments-index="attachmentsIndex"
     :submittable="false"
@@ -23,6 +23,7 @@
   <FormulaFieldAreas
     v-if="formulaFields.length"
     :fields="formulaFields"
+    :readonly-values="readonlyConditionalFieldValues"
     :values="values"
   />
   <Teleport
@@ -857,6 +858,13 @@ export default {
     isMobile () {
       return /android|iphone|ipad/i.test(navigator.userAgent)
     },
+    readonlyConditionalFieldValues () {
+      return this.readonlyConditionalFields.reduce((acc, f) => {
+        acc[f.uuid] = (this.values[f.uuid] || f.default_value)
+
+        return acc
+      }, {})
+    },
     attachmentConditionsIndex () {
       return this.schema.reduce((acc, item) => {
         if (item.conditions?.length) {
diff --git a/app/javascript/submission_form/formula_areas.vue b/app/javascript/submission_form/formula_areas.vue
index 51632a0e..02030e77 100644
--- a/app/javascript/submission_form/formula_areas.vue
+++ b/app/javascript/submission_form/formula_areas.vue
@@ -38,6 +38,11 @@ export default {
       required: false,
       default: () => []
     },
+    readonlyValues: {
+      type: Object,
+      required: false,
+      default: () => ({})
+    },
     values: {
       type: Object,
       required: false,
@@ -87,7 +92,7 @@ export default {
     },
     calculateFormula (field) {
       const transformedFormula = field.preferences.formula.replace(/{{(.*?)}}/g, (match, uuid) => {
-        return this.values[uuid] || 0.0
+        return this.readonlyValues[uuid] || this.values[uuid] || 0.0
       })
 
       return this.math.evaluate(transformedFormula.toLowerCase())