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Compound interest
A = P(1 + r/n)nt
Principal
$10,000
Rate
5%
Years
10
Future value
$16,470
+ $6,470 in interest earned
656+
Calculators
6
Languages
$0
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Compound Interest
Advanced compounding with frequency.
BMI
Body Mass Index from height and weight.
Salary
Convert hourly to annual income.
Percentage
Calculate percentages, increases, and discounts.
Unit Converter
Length, weight, and temperature.
401(k) Retirement Calculator — Project Your Future Balance
Project your 401(k) balance at retirement with employer matching and compound growth.
ROI
Return on investment and annualized rate.
Loan
Monthly payments for any loan.
Calorie
Daily calorie needs (TDEE) by activity level.
BMI Percentile Calculator — Kids & Teens (CDC) | CalcxApp
Quick and accurate bmi percentile calculator with visual charts and detailed tables.
Why CalcxApp
Beautiful calculators, built right
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No accounts, no tracking, no cookies. Every calculation runs in your browser — your data never leaves your device.
Reviewed by experts
Every formula is grounded in authoritative sources — CFPB, Federal Reserve, WHO, NIST, ISO, and more. Reviewed quarterly.
6 languages
English, Spanish, Portuguese, French, German, and Italian. Each translation reviewed by native-speaking financial and health professionals.