diff --git a/.changeset/flat-moments-flash.md b/.changeset/flat-moments-flash.md
new file mode 100644
index 0000000..edd834a
--- /dev/null
+++ b/.changeset/flat-moments-flash.md
@@ -0,0 +1,5 @@
+---
+'@epilot/pricing': patch
+---
+
+Improve tier display string
diff --git a/src/tiers/utils.test.ts b/src/tiers/utils.test.ts
index 3c5ddf8..e2cb38c 100644
--- a/src/tiers/utils.test.ts
+++ b/src/tiers/utils.test.ts
@@ -204,7 +204,7 @@ describe('getTierDescription', () => {
     ${PricingModel.tieredVolume}    | ${tierWithUnitAmount}             | ${'kWh'}     | ${'de'}      | ${'EUR'}     | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${undefined} | ${'Starts at 10,00 €/kWh'}
     ${PricingModel.tieredVolume}    | ${tierWithUnitAmount}             | ${'kWh'}     | ${'en'}      | ${'USD'}     | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${undefined} | ${'Starts at $10.00/kWh'}
     ${PricingModel.tieredVolume}    | ${tierWithUnitAmount}             | ${'kWh'}     | ${'en'}      | ${'EUR'}     | ${mockedTranslationFn} | ${true}      | ${true}              | ${undefined}           | ${undefined} | ${'Starts at €10.00/kWh'}
-    ${PricingModel.tieredVolume}    | ${tierWithSubunitAmount}          | ${'kWh'}     | ${'en'}      | ${'EUR'}     | ${mockedTranslationFn} | ${true}      | ${true}              | ${undefined}           | ${undefined} | ${'Starts at 5.12 cents/kWh'}
+    ${PricingModel.tieredVolume}    | ${tierWithSubunitAmount}          | ${'kWh'}     | ${'en'}      | ${'EUR'}     | ${mockedTranslationFn} | ${true}      | ${true}              | ${undefined}           | ${undefined} | ${'Starts at 5.123412 cents/kWh'}
     ${PricingModel.tieredVolume}    | ${tierWithSubunitAmount}          | ${'kWh'}     | ${'en'}      | ${'EUR'}     | ${mockedTranslationFn} | ${true}      | ${true}              | ${undefined}           | ${4}         | ${'Starts at 5.1234 cents/kWh'}
     ${PricingModel.tieredVolume}    | ${tierWithUnitAmount}             | ${undefined} | ${'en'}      | ${'EUR'}     | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${undefined} | ${'Starts at €10.00'}
     ${PricingModel.tieredVolume}    | ${tierWithUnitAmount}             | ${'unit'}    | ${'en'}      | ${'EUR'}     | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${undefined} | ${'Starts at €10.00'}
@@ -261,10 +261,10 @@ describe('getTierDescription', () => {
 
   it.each`
     pricingModel                    | tier                     | unit     | locale  | currency | t                      | showStartsAt | enableSubunitDisplay | shouldDisplayOnRequest | tax                                | expected
-    ${PricingModel.tieredGraduated} | ${tierWithUnitAmount}    | ${'kWh'} | ${'en'} | ${'EUR'} | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${{ isInclusive: true, rate: 10 }} | ${'Starts at €9.09/kWh'}
-    ${PricingModel.tieredVolume}    | ${tierWithUnitAmount}    | ${'kWh'} | ${'en'} | ${'EUR'} | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${{ isInclusive: true, rate: 10 }} | ${'Starts at €9.09/kWh'}
-    ${PricingModel.tieredVolume}    | ${tierWithSubunitAmount} | ${'kWh'} | ${'en'} | ${'EUR'} | ${mockedTranslationFn} | ${true}      | ${true}              | ${undefined}           | ${{ isInclusive: true, rate: 10 }} | ${'Starts at 4.66 cents/kWh'}
-    ${PricingModel.tieredFlatFee}   | ${tierWithFlatFeeAmount} | ${'kWh'} | ${'en'} | ${'EUR'} | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${{ isInclusive: true, rate: 10 }} | ${'Starts at €9.09'}
+    ${PricingModel.tieredGraduated} | ${tierWithUnitAmount}    | ${'kWh'} | ${'en'} | ${'EUR'} | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${{ isInclusive: true, rate: 10 }} | ${'Starts at €9.090909090909/kWh'}
+    ${PricingModel.tieredVolume}    | ${tierWithUnitAmount}    | ${'kWh'} | ${'en'} | ${'EUR'} | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${{ isInclusive: true, rate: 10 }} | ${'Starts at €9.090909090909/kWh'}
+    ${PricingModel.tieredVolume}    | ${tierWithSubunitAmount} | ${'kWh'} | ${'en'} | ${'EUR'} | ${mockedTranslationFn} | ${true}      | ${true}              | ${undefined}           | ${{ isInclusive: true, rate: 10 }} | ${'Starts at 4.657647 cents/kWh'}
+    ${PricingModel.tieredFlatFee}   | ${tierWithFlatFeeAmount} | ${'kWh'} | ${'en'} | ${'EUR'} | ${mockedTranslationFn} | ${true}      | ${false}             | ${undefined}           | ${{ isInclusive: true, rate: 10 }} | ${'Starts at €9.090909090909'}
   `(
     'should return correct net values for the tier, when pricingModel=$pricingModel, unit=$unit, locale=$locale, currency=$currency, showStartsAt=$showStartsAt',
     ({
diff --git a/src/tiers/utils.ts b/src/tiers/utils.ts
index 71d8b3d..b8558d3 100644
--- a/src/tiers/utils.ts
+++ b/src/tiers/utils.ts
@@ -144,7 +144,7 @@ export function getTierDescription(
     return;
   }
 
-  const { showStartsAt = true, enableSubunitDisplay = false, precision = 2 } = options;
+  const { showStartsAt = true, enableSubunitDisplay = false, precision } = options;
   const showUnitAmount =
     (pricingModel === PricingModel.tieredGraduated || pricingModel === PricingModel.tieredVolume) &&
     typeof tier.unit_amount === 'number';
@@ -161,7 +161,7 @@ export function getTierDescription(
     currency,
     locale,
     enableSubunitDisplay,
-    precision,
+    ...(precision !== undefined ? { precision } : { useRealPrecision: true }),
   };
 
   const unitAmountDecimal =