195+ Free Professional Calculators
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Free professional-grade calculators for finance, health, mathematics, and everyday life. Trusted by students, professionals, and researchers worldwide.
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Browse 195+ professional tools organized across four main categories
Matematika
44 kalkulator
Algebra, geometry, statistics, trigonometry, and number theory tools.
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Keuangan
68 kalkulator
Mortgages, loans, investments, taxes, retirement planning, and business tools.
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Kesehatan & Kebugaran
31 kalkulator
BMI, calories, nutrition, fitness planning, and wellness calculation tools.
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Utilitas
52 kalkulator
Conversions, time & date, energy, automotive, and everyday utility tools.
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Our growing collection of tools trusted by users worldwide
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Why Us
Why Choose CalculatorDrive?
Professional-grade tools designed with accuracy, speed, and simplicity in mind
Akurasi Ilmiah
Every formula is based on established scientific methods and peer-reviewed research.
100% Free Forever
No registration, no hidden fees, no premium tiers. All tools available for free.
Dioptimalkan untuk Seluler
Responsive design that adapts perfectly to desktop, tablet, and mobile devices.
Instant Results
Lightning-fast calculations with no waiting. Get your answers in milliseconds.
Mudah Digunakan
Clean interface with clear labels, helpful examples, and step-by-step guidance.
25+ Languages
Available in over 25 languages including Arabic, Spanish, French, German, and more.
Siap Mulai Menghitung?
Bergabunglah dengan jutaan pengguna yang mempercayai kalkulator profesional kami untuk kebutuhan akademis, profesional, dan pribadi mereka.