Finance
Grow and protect your money — plan savings, crush debt, and see the power of compounding.
100% Free · No sign-up to try
Free Online Calculators
A growing library of professional calculators for money, business, health and life. Search below or browse by category — every tool is free to use.
40 free tools · 10 categories · instant results
Property
Smart tools for buyers, landlords and investors — from monthly repayments to UK stamp duty.
Trading
Manage risk like a pro — size positions, value pips, and check risk/reward before you enter.
Business
Make data-driven decisions — price your time, value your company, and forecast cash flow.
E-Commerce
Sell profitably — nail your margins, break-even point, pricing and ad-spend return.
AI & Technology
Measure the real impact of AI — ROI, hours saved, automation gains, and hire-vs-AI.
Fitness
Train smarter with evidence-based formulas — BMI, body fat, strength and calorie needs.
Nutrition
Fuel your goals — find your calorie needs, plan your macros, hit your protein and stay hydrated.
Mental Health
Free self-assessment tools to check your stress, sleep, wellbeing and screen-time balance.
Estate Planning
Protect your legacy — estimate UK inheritance tax, net worth, cover needs and distribution.
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Free calculators for money, business & life
UNITY 2B3 brings together 40 professional-grade calculators in one free resource. Whether you're working out a mortgage repayment, sizing a trade, checking your BMI, forecasting business cash flow or estimating UK inheritance tax, you can find the right tool in seconds — search by name above, filter by category, or browse the cards. Every calculator runs instantly in your browser with no sign-up required.
Create a free UNITY 2B3 account to save your results, track your progress over time, and unlock the full empowerment platform — education, community and personalised planning across ten areas of life.
Are these calculators really free?
Yes — every tool is 100% free to use, with no sign-up needed to try. A free account simply lets you save results and access the wider platform.
Which calculators are included?
40 tools across 10 categories: Finance, Property, Trading, Business, E-Commerce, AI & Technology, Fitness, Nutrition, Mental Health and Estate Planning.
Do the calculators work on mobile?
Yes. Every calculator is fully responsive and works on phones, tablets and desktops.
Save your results — free forever
Create a free account to save calculations and unlock the full UNITY 2B3 platform.
Create Free Account →