Apps Like e-calcFree for iPhone and iPad
Calculate with scientific and engineering notation
Perform scientific and engineering calculations with support for notation like 1E-6 and multipliers such as p, n, u, m, k, M. Edit formulas, recalculate, and view calculation history.
e-calcFree screenshots
Ranked alternatives
Showing 781–800 of 1,000 ranked alternatives.



All-in-One Calculator Tools
Rajib Biswas
Calculate, convert, and organize tasks
Perform calculations with a scientific , solve equations, and convert units. Access financial for loan and interest calculations. Use health calculators for BMI and calorie tracking. Manage tasks with a planner and note-taking features.

Time cal
Yukio Oishi
Calculate time with background operation.
The app displays current time and counter simultaneously for calculations. It offers four modes: Loop, SW, SW, and LAP, supporting frame-based time calculations for various industries and tracking elapsed or remaining time.

Gear Ratio
Robert Sayman
Calculate vehicle speed and ratios easily.
The app calculates gear ratio, driveline ratio, and vehicle speed using US and Metric units. It supports multiple input methods for tire size and saves calculation history for quick reference.


RPNConverter: Convert from infix notation to reverse polish notation with the calculator
Masaki Horimoto

Steel weight calculator
昆 张
Calculate steel weight and price.
The app calculates the weight and price of various steel types, including construction, form, volume, and tube steel. It saves calculation history for easy access and includes data for commonly used steel models.








Coord and Time Calculator
Takafumi AMANO
Calculate coordinates and time easily.
The app performs calculations for coordinates and time. It converts degrees-minutes-seconds into seconds and seconds into degrees-minutes-seconds.

fuelTool
Martin Groesbeek
Calculate fuel uplift and limiting weight.
The app calculates fuel uplift and limiting weight for aviation. It can determine limiting mass, allowable fuel, or payload, and offers crosswind calculations with METAR information.
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