Flight Time & FDP: Avion Calc

Say goodbye to mental math on the flight deck. Avion Calc is the modern, precision-engineered time calculator and aviation utility designed specifically for pilots, flight crew, and aviation professionals. Whether you need a powerful time math calculator to add up block times, convert hours for your logbook, or calculate complex Flight Duty Periods (FDP), Avion Calc delivers speed, accuracy, and a high-contrast interface built for flight operations.

Powerful Full-Featured Time Calculator

Avion Calc includes a versatile time calculator built to handle multi-format time arithmetic effortlessly. Add, subtract, multiply, divide, and calculate time percentages without converting everything manually:

• Time Subtraction: 3h 15m − 1h 30m = 1h 45m
• Mixed Formats: 1.5h + 30m = 2h 00m
• Time Multiplication: 1h 30m × 2 = 3h 00m
• Time Division: 3h ÷ 2 = 1h 30m
• Percentage of Time: 1h + 10% = 1h 06m
• Multi-Step Equations: 2h 15m × 3 + 45m = 7h 30m
• Parentheses Support: (4h 15m + 1h 45m) ÷ (2 + 1) = 2h 00m

No matter how you write time—1h 10m 20s, 1.5h, or total minutes like 120m—Avion calculates it instantly.

Key Features:

• Flexible Data Entry: Don't let rigid inputs slow you down. Enter time your way using HH:MM format (e.g., 08:45), total minutes (e.g., 165), or interval inputs (e.g., 0800 - 1045 Off-Block to On-Block).
• Dual-Format Time Output: Get instant calculations in both HH:MM and Decimal (e.g., 7.75) simultaneously—ideal for flight logbook logging, pilot logbooks, and airline payroll reporting.
• Master Your Duty Day: Easily calculate Flight Duty Period (FDP) and total Duty Period with pinpoint accuracy.
• Customizable Buffers: Adjust Report Time and Debrief Time offsets to match your airline's specific OM-A operations manual guidelines.
• One-Tap Copy: Tap any calculation result to copy it to your clipboard for electronic logbooks, company portals, or flight reporting apps.
• 24-Hour Operations Support: Full 24h time format compatibility for night flights, long-haul rotations, and international time calculations.
• 100% Offline Capability: Works completely offline—no internet or cellular signal required on board.

Built for the Cockpit & Daily Use:

• High-Contrast Design: Clean, distraction-free UI tailored for low-light cockpits and quick one-handed use during turnaround.
• Ad-Free Utility: Focused entirely on speed, privacy, and accuracy.
• Versatile Use: The perfect time math tool for student pilots, commercial airline captains, cabin crew, and anyone searching for a reliable hours and minutes calculator.

Download Avion today to simplify your time calculations and streamline your flight deck workflow!

Recent changes:
Introducing the All-New Time Calculator!

• Flexible Formatting: Work effortlessly across formats like 1h 10m 20s, 1.5h, 120m, and more.
• Full Arithmetic Support: Easily add, subtract, multiply, divide, and calculate percentages of time.
• Designed specifically for pilots, flight crew, and aviation enthusiasts to simplify flight logging and time calculations.