Every calculation, clearly.
Browse 12 focused groups for money, math, business, property, fitness, travel, operations, science, festivals, and everyday conversions.
Financial Calculators
Compare Indian tax regimes, plan a SIP goal, and calculate a salary hike.
Freelance & Solo Business
Set sustainable freelance rates and model eCommerce margins and advertising economics.
Cost & Operations
Audit subscription inflation, compare freight packing, and measure appliance standby energy.
Technical & Science
Calculate CNC speed and feed, rainwater storage, survey sample size, and solution dilution.
Real Estate & Trade Professionals
Estimate construction materials and evaluate rental-property yield and financing.
Fitness & Training
Scale meals from known macro values and load an Olympic barbell from available plates.
Travel & Global Living
Compare an international move using taxes, exchange risk, visas, flights, and living costs.
Everyday Calculators
Solve common percentage, date, shopping, travel, and pace questions.
Math Calculators
Work with fractions, decimals, scientific expressions, and descriptive statistics.
Festival Calculators
Plan celebration spending, giving, meals, fasting duration, and important dates.
Conversion Calculators
Convert currencies, physical units, kitchen measures, clothing, and shoe sizes.
Gematria Calculator
Calculate English and Hebrew values with totals and per-letter breakdowns.
What is Convertly?
Convertly is a free online calculator and conversion website. It provides focused tools for financial planning, everyday math, freelance pricing, business costs, property analysis, fitness, global living, operations, engineering, research, festivals, measurement conversion, and gematria. Calculations run in the browser where possible, so users receive immediate results without creating an account.
Are Convertly calculators free?
Yes. Every public calculator and converter on Convertly is free to use, with no account or subscription required.
How should I choose a calculator?
Choose Finance for tax, SIP goals, or salary changes; Math for fractions and statistics; Business for freelance and eCommerce planning; Property for materials and rental yield; Fitness for macros and barbell loading; Costs for subscriptions, freight, and standby energy; Technical for CNC, rainwater, sample size, and dilution; or Conversions for currencies and units.
Does Convertly store calculator inputs?
Convertly's static calculators process entered values in the browser and do not submit those values to a calculation server.