Zulu+ is the calculator built for people who live across time zones.
TIME CALCULATOR
Add, subtract, multiply, and divide durations the way you actually think about time — hours and minutes, not decimals. Switch between decimal and h:mm format anytime, and Zulu+ remembers your preference.
UNIT CONVERTER
Length, volume, temperature, weight, speed, and pressure — all in one place, with the full range of units pilots and travelers actually need (knots, nautical miles, hPa, inHg, and more), not just the basics.
JET LAG CALCULATOR
Enter your departure and arrival times with their time zones, and Zulu+ works out your real flight duration, how many time zones you're crossing, which direction, and an estimated recovery time — so you know what to expect before you land.
DESIGNED TO GET OUT OF YOUR WAY
Clean, native, and fast. No ads, no subscriptions, no clutter — just the tools you need, built with the same attention to detail as the apps you use every day.
Zulu+ is a one-time purchase. No account required, nothing tracked, nothing to manage.
