Time and work planning

Leave balance calculator

A simple linear accrual balance. Employer rounding, carry-over and contractual rules must be entered separately.

Your numbers

Use the units shown. Results update as you change valid inputs.

YOUR RESULT

A simple linear accrual balance. Employer rounding, carry-over and contractual rules must be entered separately.

THE NUMBERS, EXPLAINED

How to use this calculator.

A simple linear accrual balance. Employer rounding, carry-over and contractual rules must be entered separately.

Start with your inputs

Enter starting leave (days), accrual per month (days), months accrued, leave taken (days). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.

InputExample value
Starting leave (days)10
Accrual per month (days)2
Months accrued3
Leave taken (days)4

A worked example

With the example inputs above, remaining leave (days) is 12. Change the inputs to explore your own scenario.

Putting the example numbers into the formula

Remaining leave (days)
(10)+(2) × (3)-(4) = 12

All results for the example inputs above
ResultExample answer
Remaining leave (days)12

How this is calculated

Remaining leave (days)

a+b × c-d

Symbols and units
a
Starting leave (days)
b
Accrual per month (days)
c
Months accrued
d
Leave taken (days)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions and limits

A simple linear accrual balance. Employer rounding, carry-over and contractual rules must be entered separately.

Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.

Questions about this tool

What does the result tell me?

Remaining leave (days). The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.

Why might another calculator differ?

Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: A simple linear accrual balance. Employer rounding, carry-over and contractual rules must be entered separately.

Are my inputs stored or sent to AI?

Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.

Review status

Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.

Read the quality report →