Comparison

Electric Motors Speed Calc vs Torricelli

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Electric Motors Speed Calc

This physics calculator quickly determines electric motor power, torque, or speed. It supports various units, offers instant calculations with copyable results, and includes reference formulas. Optimized for everyday use, it's a lightweight tool for engineers and hobbyists.

Highlights
  • Instant calculations
  • Copyable results
  • Included formulas
  • Supports 16 decimal places
  • Multiple unit support
  • Lightweight and optimized
Features
Read full description

Electric Motors Power Torque Speed Calculator is a physics/math calculator designed to find electric motor power, torque, or speed quickly and easily. Features: - Instant calculation - Results are copyable to other apps - Formulas are included as references - Supports up to 16 decimal places - Supports various units for each input - Lightweight app with a small size, optimized for everyday use The speed for an electric motor in SI units can be calculated as n = f x ( 2 / p ) x 60 The torque for an electric motor in SI units can be calculated as T = P x 9.549 / n Where: T = torque (Nm) P = power (watts) n = revolution per minute (rpm) f = frequency of electrical power supply (Hz, cycles/sec, 1/s) p = number of poles The speed for an electric motor is determined by the power supply frequency and the number of poles in the motor winding. The torque is the twisting force and is also the driving force of an electric motor. The power produced by the motor depends on the speed of the motor, which is zero at 0% speed and normally at its peak at 100% speed. On an induction motor, the number of poles determines the speed given the frequency of the power. For example, a 2-pole motor on 60 Hz equals RPM = 60*(2/2)*60 RPM = 3600 rpm a 4 pole motor on 60 Hz equal to RPM = 60*(2/4)*60 RPM = 1800 rpm For 6 poles, 1200 rpm, and so on. As speed decreases, the torque increases, so an 8-pole motor has 4x the torque compared to a 2-pole motor with 1/4 the 8-pole motor speed. *60 Hz is the most common frequency in the US. *50 Hz is the most common frequency outside the US. Thanks for your support, and please do visit nitrio.com for more apps for your iOS devices.

About

Torricelli

Features
Read full description

Torricelli's Theorem Calculator Based on Torricelli's Law, also known as Torricelli's Theorem, this calculator is a tool in fluid dynamics that relates the speed of fluid flowing out of an opening to the height of the fluid above the opening. Features: • Input parameters such as Tank Height, Tank Radius, Spigot Height, and Spigot Radius. • Simulate water flowing out from the tank in 3D. • Simulate the volume of water remaining over time. • Simulate water pressure over time. • Simulate water speed at the spigot over time. • Simulate water distance over time. • Simulate the farthest water height remaining over time. • Simulate the time needed for the water to flow out until reaching the spigot height. • Works seamlessly on both iPhone and iPad. • Lightweight, compact app optimized for everyday use. • Ad-free and built with privacy in mind. Torricelli's Theorem states that if a tank contains liquid and is open to the atmosphere at its top, and there is an orifice in the tank at a height h below the top of the liquid, then the speed of outflow from the orifice is √2gh, provided the liquid obeys Bernoulli's equation and the top of the liquid can be regarded as motionless. Torricelli's Theorem Formula: v = √2 * g * h where: v : Fluid Speed at the Orifice, in meters per second (m/s) h : Height of the Orifice from the Top, in meters (m) g : The acceleration due to gravity, 9.80665 m/s² Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Electric Motors Speed Calc4 screens
Torricelli4 screens

Verdict

The call

Electric Motors Speed Calc and Torricelli are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Electric Motors Speed Calc costs $2.99 and Torricelli $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Electric Motors Speed Calc ships an update every 26 months, Torricelli every 28 months. The most recent releases landed on August 22, 2026 and September 13, 2026 respectively.

ScorecardNo meaningful differences
Electric Motors Speed Calc versus Torricelli: the parameters behind the verdict, then further details
ParameterElectric Motors Speed CalcTorricelli
Price$2.99$2.99
Rating4.0 (8 ratings) — better
Positive reviews100.0% of reviews
Number of ratings8 — better
Update frequencyEvery 26 months — betterEvery 28 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1313
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperNitrioHeng Jia Liang

In-app purchases

None

Electric Motors Speed Calc

No in-app purchases

None

Torricelli

No in-app purchases

Questions

Is Electric Motors Speed Calc free?
Electric Motors Speed Calc costs $2.99, with no in-app purchases.
Is Torricelli free?
Torricelli costs $2.99, with no in-app purchases.
Do Electric Motors Speed Calc or Torricelli have ads?
Neither Electric Motors Speed Calc nor Torricelli shows ads.
Which is updated more often, Electric Motors Speed Calc or Torricelli?
Electric Motors Speed Calc ships an update every 26 months, and Torricelli every 28 months. Most recently, Electric Motors Speed Calc was updated on August 22, 2026 and Torricelli on September 13, 2026.

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