About Calculator.org.nz
A free, fast, NZ-focused calculator hub. 237 calculators across mortgage, tax, finance, insurance, and everyday topics. Current to the latest IRD and RBNZ rates.
What this site is
Calculator.org.nz is a single-purpose tool: when a New Zealander needs a number, fast, on their phone, this is the page that gives it to them. No popups, no signup walls, no newsletter modals.
What we believe
- Clarity over breadth. Better designed calculators on a smaller, well-curated catalogue beats 200 cluttered tools.
- Information, not advice. Every calculator gives the maths and the inputs. We do not tell you what to do.
- Free, forever. No paid tiers, no premium features, no email gates.
How we keep things current
NZ tax brackets, ACC levies, KiwiSaver tiers, and RBNZ LVR thresholds are reviewed every quarter. Where a calculator depends on a current rate, the rate is documented in the explainer prose under the calculator.
Who builds this
A small NZ team based in Aotearoa. If you spot a maths error, an outdated rate, or a calculator that's missing, contact us at /contact/.
What about advertising and sponsorship
The site does not run ad networks, banner ads, retargeting pixels, or autoplay video. The only commercial relationship we have is per-calculator sponsorship: one sponsor per calculator, named on the page. Read the details at /sponsor/.