About Bloguu

Bloguu is a small set of free calculators for money and health questions. Twenty tools, no account, no upload, no limit on how often you use them. Every calculation runs inside your own browser, so nothing you type is sent anywhere.

Why it exists

Most calculator sites answer the question you asked and nothing more. You get a number with no working, no way to test a second scenario, and no way to send the result to anyone. Refresh the page and it is gone.

The tools here were built to fix those specific gaps. Each one shows the formula with your own figures substituted in, so you can check the arithmetic rather than trust it. The financial tools let you run two scenarios side by side, because the real question is almost never "what is my payment" but "which of these two is better." And your inputs live in the page address, so a link opens filled in for whoever you send it to.

Who writes this

My name is Mubashir. I work in accounting and finance, and I have spent the last several months building this site in my own time.

The idea came from the work itself. A large part of my job is taking a number someone has been given and checking whether it holds up — a payment schedule, a margin, a projection. The tools available online were rarely much help. They returned a figure and told you nothing about how it got there, which is the opposite of what you need when the figure is the thing in question.

I also recently implemented an Odoo ERP system for a company on my own, without a team. That project taught me more about how much friction a badly built tool adds to ordinary work than any amount of reading would have. It is a large part of why this site has no signup, no limits, and no step between opening the page and getting your answer.

I am not a licensed financial adviser, an accountant to you, or a doctor. Nothing here is advice. Every calculator uses a published standard formula, the formula is named on the page it appears on, and the working is shown so you can check the arithmetic yourself rather than take my word for it. The health tools especially are screening estimates built on population averages — I have written honestly on each page about where they fail.

If something here is wrong, I would rather know. Corrections go to the contact page and get fixed.

How the tools are built

Every calculator uses a published, standard formula, named on the page it appears on. The EMI and mortgage tools use the standard amortisation equation. The calorie calculator uses the Mifflin-St Jeor equation. The body fat tool uses the US Navy circumference method. Where a formula has known limitations, the page says so rather than hiding it.

The site is plain HTML, CSS and JavaScript with no frameworks and no tracking beyond what advertising requires. That is partly a privacy decision and partly a speed one.

What these tools are not

They are not advice. A calculator can tell you what a formula returns for your inputs; it cannot know your circumstances, your health history, or your obligations. The financial tools do not account for fees, variable rates, or tax treatment in your jurisdiction. The health tools are screening estimates built on population averages, and every one of them will be wrong for some individuals.

For anything that matters, take the number to someone qualified to interpret it.

Corrections

If you find a calculation that looks wrong, please say so through the contact page. Include the inputs you used and the figure you expected. Errors get fixed and the page notes the date it was last checked.