Free tools

Calculators that show their math

Every number is cited. Every formula is visible. No email gate, no "book a demo" wall. Built because vendor ROI calculators insult your intelligence.

NL/EU regelingen

Subsidies voor vluchtelingen aannemen

Oekraïense ontheemden, statushouders, Banenafspraak. LKV, loonkostensubsidie, proefplaatsing, jobcoach. Bronnen: UWV 2025, Belastingdienst, EU Richtlijn 2001/55.

Open calculator

27 countries

EU hiring cost calculator

All 27 EU countries. Labour cost, employer social charges, time-to-hire, validity uplift. Sources: Eurostat 2023, OECD Taxing Wages 2024, Schmidt & Hunter (1998).

Open calculator

Peer-reviewed

Cost of a bad hire

Salary-tier replacement cost, lost productivity, vacancy cost, manager time, training. Sources: Boushey & Glynn (CAP), Schmidt & Hunter (1998), US DoL.

Open calculator

With real data

Interview time savings

Hours saved switching from live screening calls to async video. Sources: Cronofy State of Scheduling 2024, Schmidt & Hunter (1998), US BLS wage data.

Open calculator

Why these exist

Most hiring calculators online are thinly-disguised lead-gen: pick a number, enter your email, get a sales call. These don't. The code is open, the sources are linked, and you can verify every input. If we cite a number, you can click through to the paper or dataset.