Rocco: Percentage Calculator

Meet Rocco — calculate percentages, discounts, tax, tips, split bills, and convert currencies in seconds. Simple tools for everyday calculations.

Calculate percentages, price changes, tips, discounts, and currency conversions instantly.
No formulas. No hassle. Just the answer.

ROCCO MAKES IT SIMPLE

• Calculate percentages in seconds
• Find what percentage one number is of another
• Calculate percentage increases and decreases
• Get clear results as you type

EVERYDAY USE

• Shopping discounts and sale prices
• Tips and shared bills
• Salary increases and price changes
• Currency conversions

TIP & SPLIT

Enter the bill, choose a tip, and divide the total between people.

Choose the split method that fits your situation:

• Equal — split the bill evenly
• Custom — enter exactly how much each person should pay
• Shares — divide the bill using different share amounts

See the total and exactly how much each person owes. Add custom names, then save or share a receipt-style calculation card.

CURRENCY CONVERTER

Convert multiple currencies using updated exchange rates and a built-in keypad. Add the currencies you use and see every conversion instantly.

WHY ROCCO

• Fast — results update as you type
• Clear — easy-to-read results and color-coded changes
• Simple — no clutter or complicated controls
• Offline — core calculations work without internet
• Apple Watch — calculate directly from your wrist
• Shareable — turn Tip & Split results into polished share cards

FEATURES

• Percentage calculator with three modes
• Percentage increase and decrease
• Tip calculator with Equal, Custom, and Shares splitting
• Custom names for bill participants
• Shareable Tip & Split calculation cards
• Currency converter with updated rates
• Quick Calculate Home Screen widget
• Calculation history
• One-tap copy
• Multiple color themes
• Apple Watch app

Free to download. Unlock all features with Rocco Premium.