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NZ calculators

• New Zealand
• Flatmate rent splitter:
• GST calculator NZ:
• KiwiSaver calculator:
• Take-home pay calculator
• Unit converter:

Dates and time

• Date and time
• Add or subtract
• Age calculator:
• Countdown timer:
• Days between
• Time zone converter:
• Working days calculator

Printables

• Printable calendars,
• Printable calendar
• Printable checklist
• Weekly planner

Text tools

• Text
• Add text to the start
• Remove blank lines
• Remove duplicate lines
• Sort lines
• Text cleaner:
• Word and character

Guides

• Plain-English
• Cleaning messy lists
• GST in New Zealand:
• How NZ PAYE
• How to count days
• KiwiSaver contributions
• New Zealand time zones
• NZ tax codes
• Printing calendars and planners
• Splitting rent and bills
• Working days and public holidays

About this site

• About Everyday Tools
• Contact
• Everyday tools, done properly.
• Privacy policy
• Terms of use

Last reviewed: 2 October 2026