Your trusted source for free, accurate drilling engineering calculations.
We provide drilling engineers, field personnel, and petroleum professionals with quick access to reliable engineering calculations. Our tools are designed to save time and improve accuracy in the field and office.
A growing collection of drilling hydraulics, mud engineering, well control, and production calculators. Each tool uses industry-standard formulas and supports multiple unit systems for global use.
Whether you're on a rig floor or in an engineering office, our calculators are optimized for both desktop and mobile use. All tools are free to use with no registration required.
Have questions, feedback, or suggestions for new calculators? We'd love to hear from you.
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