UnCalculator 2.0

The free online calculator for everyone.

Instant, client-side online calculators for everyday math, finance, health, and dates. Zero tracking. No accounts. Just fast, private results.

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Recent Updates
October 5, 2026

Editorial & Verification Standards 🛡️

Published formal mathematical verification protocols, IEEE 754 precision auditing, and statutory citation standards.

October 3, 2026

Financial Master Guides Suite 📚

Expanded guides library with 1,600+ word deep-dives for Loan Amortization, SIP vs Lump Sum, and Compound Interest.

September 28, 2026

Pure Calculation Engines Upgraded ⚡

Decoupled formula math into zero-dependency engines with 24/24 automated unit tests, real-time CAGR, and beginning/end deposit timing.

September 20, 2026

Global Hubs: Germany & Brazil 🌍

Launched localized financial suites for Germany (/de) and Brazil (/br) featuring Zinseszins, SAC vs. Price amortization, and IMC.

September 15, 2026

PWA Offline & Ergonomics 📱

Enhanced client-side service worker caching for 100% offline calculation, high-DPI vector icons, and 44px accessible touch targets.

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Calculator Suites

Browse all 80+ calculators.

02 • Capital22 tools

Financial Suite

Mortgage, amortization, compound interest, and investment ROI projections.

Mortgage Calculator
Compound Interest
Salary Calculator
Auto Loan Calculator
Investment Returns
Retirement Calculator
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Open Suite
03 • Biology12 tools

Health & Fitness

BMI, calories, TDEE, ideal weight, macros, pacing, heart rate zones, and pregnancy tools.

BMI Calculator
Calorie Calculator
Body Fat Calculator
BMR Calculator
Macro Calculator
Ideal Weight Calculator
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Open Suite
Updated
04 • Chronos10 tools

Date & Time

Age calculators, day counters, time cards, timezone converters, and duration math.

Age Calculator
Date Calculator
Time Zone Converter
Day Counter
Hours Calculator
Work Hours Tracker
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Open Suite
05 • Math7 tools

Math & Utilities

Bidirectional unit conversions across length, weight, temperature, area, and digital data.

Unit Converter & Solver
Percentage Calculator
GPA Calculator
Scientific Calculator
Standard Deviation Solver
Probability Calculator
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Planning a Home PurchaseCalculate monthly payments, total interest, and amortization schedule for a mortgage.Mortgage Calculator →
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Starting a Fitness JourneyGet your BMI, daily calorie target, and macro breakdown to reach your weight goals.BMI + Calorie Calculator →
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Growing Savings & InvestmentsProject long-term returns with compound interest, regular contributions, and ROI analysis.Compound Interest Calculator →
Related Articles

Learn more before you calculate.

Expert guides to help you understand the math behind our most popular calculators.

View More Guides & Articles→
🏠
The Complete Mortgage GuideFrom pre-approval to closing: how mortgages work, types of loans, and strategies to save thousands on interest.Read Guide →
❤️
BMI: What It Means and Its LimitationsA science-backed guide to understanding Body Mass Index, healthy weight ranges, and what metrics to use instead.Read Guide →
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The Complete Guide to Compound InterestFormulas, real examples, frequency effects, and how to make compound interest work for your wealth.Read Guide →
Company & Policies

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PlatformPhilosophyDiscover how our calculators are rebuilt from the ground up for privacy and speed.CompanyAbout UsSee why UnCalculator is built around fast, private, and accurate calculations.SupportContact UsSend feedback, report calculator issues, or suggest new tools.HelpFAQFind answers to common questions about our calculators and services.PrivacyPrivacy PolicyReview how the website handles browser storage, contact messages, and user privacy.LegalTerms & ConditionsRead the usage rules, disclaimers, and calculator result limitations.
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