Spill Calc Lite vs Stack RPN Calculator

Spill Calc Lite is a fast, reliable tool built for estimating surface spill volumes in the field. Quickly calculate spill volumes by selecting a shape, entering your measurements, and getting immediate results in barrels and gallons—right when you need them most. Supported spill types: • Square and rectangular spills • Circular spills • Triangular spills Rectangle and square calculations also include optional tank displacement, helping you account for real-world conditions on location. Designed with a clean, modern interface and an easy-to-use Help Library, Spill Calc Lite keeps calculations simple, clear, and efficient—so you can focus on the job at hand. Need more advanced features? Upgrade to Spill Calc Pro to save calculations, organize multiple spill sections, and export your data.

RPN scientific calculator benefiting from the major scientific functions visible on the screen. The calculator shows a stack of up to 4 values but can store a large number of numbers (depends on the phone's memory).