Below is a touch-and-go circuit headings calculator, a QNH converter, a UTC to AEST converter, and an estimator for the distance from a WP to begin a descent at a given FL.

MPH
fps
KPH
MPS
Knots
mbs
"Hg
AEST
Offset
UTC
Result
Adj
° FPA
FL Nm
kgs
lbs

To use the circuit headings calculator, enter the runway take-off heading at ‘Input 160°’, e.g., for runway ILS34, enter ‘340’.

The QNH converter is used by entering a value in either inHg (29.92) or millibars (1013) into the appropriate fields.

The speed converter is used by entering a value into one of the fields to get the conversion in the other fields.

To convert your local time to UTC time, first enter the time difference for your zone in the center field, e.g., AEST is -10:00 in winter and -11.00 in summer (daylight saving). Next place your local time into the AEST field to get the UTC time or place the UTC time into the UTC field to get your local (eg. AEST) time.
Example: To convert 21:35 AEST to UTC, enter 2135 (or 0935pm) into the AEST field to get 11:35 (11:35 am) in the UTC field.

To determine the distance from a given WP to begin a 3° FPA descent, enter the flight level difference between the current FL and the FL you need to be at that WP, e.g. At FL120, you need to be at FL30 at WP1, so enter the difference, FL90 (120-30 = 90), to give a distance of 28.3 Nm from WP1 to begin the descent. Note that the flight path angle, FPA (default = 3°), is editable, and the adjustment field, Adj (default = 0), can be altered to suit accuracy.