Calccura Journal
Short, useful guides paired with free calculators.
Plain-English breakdowns of salary, tax, mortgages, savings and health — each with a free calculator so you can run the numbers in seconds.
Salary & TaxLive··5 min readhow Uk is working on visas
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- Health··5 min read
BMI vs Body Fat: Which One Actually Matters?
BMI is a screening tool, not a diagnosis. It works well for populations and poorly for individuals with a lot of muscle or a very light frame. What to use instead, and when.
- Finance··5 min read
Compound Interest: The 8th Wonder, Explained Simply
Einstein probably didn't say it, but he should have. Compounding is the reason a modest £200 a month can outgrow a £50,000 lump sum — given enough time.
- Finance··6 min read
Mortgage Overpayments: The Real Math
Overpaying a mortgage is one of the highest-return, lowest-risk financial moves most homeowners can make. Here's how it works, why the effect is so large, and where the small print bites.
SponsoredAds placeholderAdd a 10-digit ad-slot ID via slot="XXXXXXXXXX" - Salary & Tax··7 min read
How UK Income Tax Actually Works in 2026/27
The Personal Allowance, the three main tax bands, National Insurance, and how student loan repayments stack on top — with worked examples for salaries at £30k, £60k and £120k.