Free calculators. Instant answers.

See how savings grow with compound interest and regular contributions. Pick your rate, frequency and term, then watch contributions vs. interest stack up.

YouTube earnings estimator. Calculate AdSense revenue by monthly views, niche, audience country, video length, and season. Multi-currency, no sign-up.

Rent vs buy calculator. Compare renting against buying year by year, see the break-even point, monthly payment and net costs. Multi-currency, free.

Convert CGPA to percentage on 5 scales: India 10-point (CBSE ×9.5), US 4.0, 5.0, Australian 7.0, Korean 4.5 — plus your 4.0 GPA equivalent.

Global income percentile calculator. Enter your income and country to see your PPP-adjusted rank and what share of the world you out-earn. Free.

Calculate how many cubic yards of concrete you need for a slab, footing or column — plus bags of pre-mix and an optional cost estimate. Free and instant.

Where tourists actually get the most VAT back

We ran a representative purchase through 38 countries’ tax-free schemes to rank what tourists ACTUALLY pocket after operator fees — not the headline VAT rate. Australia, China and the UK hold the surprises.

Global Mortgage Affordability Index

Where is a home loan most affordable? We rank 41 countries by how much of a median income a typical mortgage payment takes — computed with YouCalc’s mortgage engine from 2026 data.

AI Footprint Index

How much energy, water and CO₂ does one AI task cost? We rank 6 common AI tasks and three usage personas using YouCalc’s source-backed footprint engine — 2024 data, estimates.