Calculate BTU, convert units, compare systems, estimate
Calculate BTU/h capacity and determine recommended equipment types. Convert between BTU, kW, Kcal, and Tons. Check current price estimates and compare inverter versus conventional energy consumption. Unlock advanced features through in- purchases.
Showing 281–300 of 1,000 ranked alternatives.
STAGE CODING, Travnik
Calculate and convert units and currencies
Perform calculations, convert units and currencies, and compute percentages and proportions. Calculate areas and volumes. Drag and drop to create custom calculators. Solve complex or simple math problems.
Asad Ahsan
Convert units across 40+ categories
Convert units across 40+ categories with a single click. Switch between metric and imperial systems. Input values and select units for instant . Share results or copy to clipboard.
Calc Hub, LLC
Calculate voltage, current, and power
Calculate properties using Ohm's Law, current, power, voltage, resistance, and horsepower formulas for DC and AC circuits. Convert units between volts, amps, watts, and ohms. Determine power factor and RMS voltage. Estimate voltage drop in systems.
Michael Horowitz
Convert text to and vice versa
Convert text, , hexadecimal, and custom base numbers to each other. Perform base conversions with a minimalistic interface. Learn how different number systems work through interactive conversion. Encode messages in for fun or practical use.
MJB Studios LLC
Log time entries and calculate earnings
Log time entries with customizable categories and tags. Calculate hourly rates and total earnings. Generate detailed reports and export data in multiple formats. Track projects and set reminders for time entries.
A. H. de Quatre Ltd.
Calculate gears, track cadence, manage setups
Calculate optimal bicycle gearing based on cadence and speed. Input wheel size and chainring sizes to determine ratios. Save and manage multiple configurations. Access articles to guide setup and maintenance decisions.
RAMAN KHVASHCHEUSKI
Convert currency, units, and percentages
Currency converter lets users switch between currencies. Unit converter changes measurements like length and temperature. Percentage computes percentages. BMI estimates body mass index. Tip determines tips based on bill amount.
Christophe Briguet
Convert, compare, and size data units
Convert data sizes and rates between units. Compare storage capacities for retention planning. Estimate log management and SIEM solution requirements. Input values and receive calculated results in different units.
Edison Largo
Calculate payments and compare terms
Calculate monthly payments by entering amount, interest rate, and term. Adjust variables to see payment changes. Display results in clear format without additional features.
Greenheck Fan Corporation
Calculate fan laws and size ducts
Fan Law Calculator allows users to input rpm, cfm, static pressure, and horsepower. Modifying one value recalculates the others. Ductulator helps size HVAC ducts by inputting shape, dimensions, air temperature, elevation, and roughness.
Gunter Business Solutions Inc
Calculate chemicals accurately
Manage chemistry with advanced calculators for chlorine, pH, alkalinity, and shock treatments. Input size and conditions for accurate dosing. Track chemical levels and maintenance schedules. Export data for record-keeping.
Phan Nhat Đang
Calculate NPV for cash flows
Calculate net present value for uneven or even cash flows. Input cash flow amounts and discount rates. Copy results to clipboard. Support unlimited years of cash flow data.
Allen Sieler
Calculate offsets with precision and speed
Calculate cut joints, elbow centerlines, and overall lengths for HVAC offsets. Input angles and dimensions to determine measurements. Avoid manual calculations and trigonometry. Reduce material waste and field cutting.
V PUGAZHENTHI
Convert units, calculate values, switch categories
Convert units across 16 categories with 173 units and 2162 conversions. Perform calculations for field strength, resistance, capacitance, and more. Access 62 calculators via in- purchase.
OCTAGON SEVEN LLC
Model systems to calculate
Models electrical distribution systems to calculate available . Users input system data to determine short circuit currents at various points. The assists in verifying if equipment like fuses and circuit breakers are properly rated.
Carmel Software Corporation
Size high pressure gas piping systems.
The app sizes high pressure gas piping systems. Users input gas flow, upstream pressure, and pipe properties to determine pipe diameters, velocity, and equivalent length.
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.