Everyday tools
Online calculators and practical tools for tasks you need to solve fast
Find fast online tools for cooking times, loan payments, BAC estimates, nutrition, text work, and everyday conversions without a bloated interface.
Categories
Pick a category and jump straight to the tool you need.
Cooking
Oven temperatures and gas marks, pan and recipe scaling, ingredient substitutions, brine, syrup, dough hydration, grain ratios and thawing times.
Tools: 14
Finance
Finance calculators for monthly loan payments, mortgages, payoff plans, compound interest, inflation, discounts, VAT, and price checks.
Tools: 41
Health
BMI, calories and macros, eGFR from creatinine, body surface area, dosage by weight, blood pressure, pregnancy, VO2max and caffeine. Not medical advice.
Tools: 39
Converters
Fast converters for length, weight, temperature, cooking measures, and number bases when you need an instant answer.
Tools: 26
Text Tools
Text tools for word count, character count, reading time, and quick text cleanup or case changes.
Tools: 22
Random Choice
Random Choice tools on UniTools: random picker, random choice generator and more.
Tools: 11
Math & Statistics
Math & Statistics tools on UniTools: scientific calculator, percentage calculator and more.
Tools: 59
Law & Taxes
Law & Taxes tools on UniTools: vacation and sick pay calculation, income tax deductions and more.
Tools: 20
Building & Repair
Building & Repair tools on UniTools: how much wallpaper and flooring, concrete and brick quantities and more.
Tools: 15
Study
Study tools on UniTools: average from a list of grades, grade needed on the final and more.
Tools: 14
Electrical
Electrical tools on UniTools: ohms law and power, cable size and voltage drop and more.
Tools: 15
Home & Utilities
Home & Utilities tools on UniTools: utility bills from meter readings, heating power and more.
Tools: 20
Nature & Weather
Sunrise and sunset by coordinates, moon phase, length of daylight, wind chill and heat index, and the Beaufort scale.
Tools: 8
Business & Warehouse
The full cost of an employee and of a meeting, inventory turnover and safety stock, invoices with VAT, pallet loading and volumetric weight.
Tools: 12
FAQs
Does anything I type into a calculator leave my browser?
No. The maths runs in your browser: amounts, weights, dates and text are never sent to the server and are stored nowhere, unless you press save or share yourself.
Are the tools paid? Do I need an account?
Every calculation is free and works without signing in. An account only lets you keep a result and reopen it later from another device.
Can I use the alcohol estimate to decide whether to drive?
No. It is a rough figure from weight, sex and elapsed time; it knows nothing about your metabolism, your food or your medication. Only a breathalyser answers that question.
The calculation I need is missing — what now?
Write to the address on the contact page. We read those messages, and they shape which tools get built next.