MyCalcToolkit
20 Free Calculators

Calculate anything, instantly.

Free online calculators for finance, health, math, education, and more. Fast, accurate, and designed for everyone.

All Tools

All Calculators

25 available
๐Ÿ’ณ

Monthly payment, interest & amortization for any loan.

๐Ÿ 

Monthly mortgage payment with taxes & insurance.

๐Ÿ’น

Simple & compound interest with growth schedule.

๐Ÿฆ

Future value of savings with monthly contributions.

๐Ÿ“ˆ

Portfolio growth with recurring contributions.

๐Ÿ–๏ธ

Retirement corpus & monthly income projection.

๐Ÿ‡ฎ๐Ÿ‡ณ

FY 2024-25 Old vs New Regime with 80C/80D.

๐Ÿ‡บ๐Ÿ‡ธ

Federal + all 50 state taxes with FICA.

๐Ÿ‡ฌ๐Ÿ‡ง

Income Tax, NI & Student Loan 2024-25.

๐Ÿ‡ฉ๐Ÿ‡ช

Brutto-Netto with Steuerklasse & social.

๐Ÿ‡ซ๐Ÿ‡ท

Impรดt sur le revenu with quotient familial.

๐Ÿ‡ฆ๐Ÿ‡บ

ATO 2024-25 rates + HECS + Medicare.

๐Ÿ’ต

Take-home pay after taxes & deductions.

๐Ÿš—

Auto loan payment with trade-in & sales tax.

๐Ÿ’ฑ

Live exchange rates for 30+ currencies.

โš–๏ธ

Body Mass Index with WHO classification.

๐ŸŽ

Daily calorie needs using Mifflin-St Jeor.

๐Ÿƒ

Total daily energy with cutting/bulking macros.

๐Ÿ”ฅ

Basal metabolic rate โ€” Mifflin & Harris-Benedict.

%

Percent of, increase, decrease & difference.

๐Ÿ”„

Length, weight, temperature, volume & more.

๐ŸŽ‚

Exact age + next birthday countdown.

๐Ÿ“†

Days between dates with business days.

โฑ๏ธ

Time difference, add & subtract time.

๐ŸŽ“

Semester & cumulative GPA on 4.0 scale.

Why MyCalcToolkit

Built different.

Not just another calculator site. We obsess over speed, accuracy, and design.

Instant Results

No page reloads. Results update in real-time as you type. Every calculator runs entirely in your browser.

Mobile First

Designed for touch. Works perfectly on phones and tablets with range sliders and large tap targets.

Accurate & Private

Industry-standard formulas. No data leaves your device. No sign-up, no tracking. Just math.

20

Calculators

6

Categories

0ms

Server Latency

100%

Free Forever

FAQ

Frequently Asked Questions

What is MyCalcToolkit?

MyCalcToolkit is a free calculator platform with 20 production-grade tools covering finance, health, math, date & time, education, and technology. All calculations run in your browser โ€” no server, no sign-up, no tracking.

Are the calculators accurate?

Yes. We use industry-standard formulas (Mifflin-St Jeor for BMR, standard amortization for loans, 2024 tax brackets) and validate against authoritative sources.

Does it auto-detect my currency?

Yes. All finance calculators automatically detect your country from your browser timezone and display the correct currency symbol (โ‚น, $, ยฃ, โ‚ฌ) and number format (lakh vs million).

Does it work on mobile?

Absolutely. Every calculator is mobile-first with touch-friendly sliders, responsive layouts, and 16px font sizes that prevent iOS zoom.

Is my data private?

Yes. All calculations happen in your browser. We never send your inputs to any server. No cookies, no tracking. Your financial and health data stays on your device.

Ready to calculate?

20 production-grade calculators. Free forever. No sign-up needed.