Built for clarity
Each calculator includes plain-language explanations, unit controls, and instant recalculation so you always understand the numbers.
Trusted by planners, teams, and everyday users
Calculators that deliver answers you can act on
QuickCalc brings together finance, productivity, and wellness math in one fast, privacy-first toolkit. No sign-ups, no data retention—just accurate figures backed by detailed guides.
- purpose-built calculators
- 12+
- average calculation time
- <1s
- data stays on your device
- 0 logins
Calculator library
Pick a tool and get instant insights
Every calculator is tuned for speed, validation, and accessibility. Switch between metric and imperial units, export amortization tables, and share deep links without losing your work.
Mortgage
Estimate payments, amortization, and total interest before you commit.
Loan
Plan personal, student, or auto loans with flexible terms and rates.
BMI
Check BMI instantly for adults or teens using metric or imperial units.
Age
Find exact age in years, months, days, or countdown to your next milestone.
Date Difference
Count days, workweeks, or key deadlines between any two dates.
Tip
Split the bill, round totals, and keep groups honest in one tap.
Business Days
Count workdays excluding weekends and US holidays for project plans.
Compound Interest
Forecast growth for savings or investments with custom compounding.
SEO-ready insights
Every results page is structured with semantic headings and schema markup so you can cite or share trusted answers.
Guides & walkthroughs
In-depth guides cover mortgages, loans, BMI categories, tip etiquette, and more to reinforce confident decisions.
Why QuickCalc
Fast math plus trustworthy context
QuickCalc uses lightweight client-side math so your inputs never leave the page. Structured data, accessible markup, and comprehensive copy make each calculator easy to index and easy to understand.
Financial planning
- Create payoff strategies for mortgages, auto, or personal loans.
- Compare fixed versus adjustable rates with amortization tables.
- Project savings growth with compound interest scenarios.
Health & lifestyle
- Track BMI and age milestones for wellness programs.
- Calculate tip splits, dining budgets, or group travel costs.
- Plan events with accurate date and business-day counts.
About QuickCalc
QuickCalc is an independent project focused on transparency and speed. Each tool runs instantly in your browser, prioritizing privacy with no sign-ups or storage. We publish frequent updates to improve accuracy, add region-specific presets, and answer community questions.
Looking to understand the math behind the numbers? Browse our calculator guides or check the FAQ for quick answers.