eCalc - electric drive simulation and calculation

reliable electric drive simulations

xcopterCalc for multicopter and drone calculationfor Multirotor
propCalc for fixed wing aircraftfor Airplane
propCalc for fixed wing aircraftfor Airplane
fanCalc for electric jet calculationfor EDF Jets
heliCalc for helicoopter calculationfor Helicopter
chargeCalc for EVscharging EVs
chargeIndex for EVscompare charging
torqueCalc for industrial designfor industry

 news - February 25th

2/25/21 - Motor database: T-Motor AM40 Series added

2/10/21 - Motor database: Dualsky GA3500R-180 added

1/31/21 - Motor database: Leomotion L3007 F5J, XPower F2307/14 inserted

12/24/20 - Motor database: BrotherHobby Avanger V3 & Neu Motors NM1533, 1536, 1539 added

12/2/20 - Motor database: Dualsky XM22xxEG, Esprit Elite E105/20-135 3D HD, T-Motor F1303 added

11/26/20 - 10 millionst visitor - wow!

11/23/20 - chargeIndex V1.3: new detail view and core efficiency

11/18/20 - ESC database: HobbyWing updated

11/12/20 - Motor database: RCinPower GTS V2 & SmooX added

11/3/20 - evCalc: Audi e-tron GT/RS added

11/3/20 - evCalc: BYD Han and Tang added

10/31/20 - evCalc: JAC e-S2 added

10/25/20 - Battery database: Sony US18650VTC6, Molicel INR21700-P42A added

9/29/20 - Motor database: Tmotor F90, Peggy Pepper 2524, Surpass C5065, Hacker B50-S updated, MAD M30-100, BrotherHobby VY, Max

9/25/20 - 150 Millions Drive Calculation - thanks for using eCalc!

9/15/20 - Motor database: Surpass brand added

9/15/20 - Motor database: DYS SF, SHU, WEI & WU serie updated

9/15/20 - evCalc: Opel Zafira-e added

9/12/20 - evCalc: Lucid Air - Dream Edition, Grand Touring & Touring added

8/28/20 - evCalc: Lucid Air updated, Mercedes EQC 350 & Hyundai 45 added

8/24/20 - chargeIndex V1.0: first consumption based charge comparison - the only objective interbrand charge comparison

8/21/20 - Motor Database: Scorpion HK-4525-370 , Leomotion L8013-205, Flywoo 1404, Kontronik Kira updated

6/25/20 - Motor Database: Dualsky Product Alignment, Cobra 2204/40, new brands Flywoo, Apex, Spitz

6/24/20 - evCalc V 5.20: being first to consider actual wind along the route

5/13/20 - eCalc Version 7.20 - What's new?

  • new Quick Gauge Plug-in
  • xcopterCalc: Range estimate in the result column
  • heliCalc: Motot@Maximum calculation for  constant headspeed (iso max. headspeed)
If you have problems to run the new version, please proceed according the General Procedure here...

5/13/20 - evCalc Version 5.10 - What's new?

  • Recharge Time in Graph improved considering low/high SoC
  • new Quick Gauge Plug-in
  • Routing Service changed to MapBox, TomTom & GrasHopper

5/13/20 - chargeCalc Version 2.03 - What's new?

  • Service Update

1/21/20 - We are proud to welcome the 9th-millionst visit since counting back in february 2010.

Still guessing...?

Sign-up now and get instant access!

✓ affordable and less than a single wrong prop!
✓ Reliable Predictions since 2004
✓ calculating more than 20'000 setups a day
✓ over 160mio drives calculates so far

available in 19 languages: العربية ,中文, čeština, deutsch, english, espaņol, franįais, hrvatski, italiano, 日本語, 한국어, Nederlands, فارسی, polski, portuguęs, русский, românesc, svenska, türk

System Status:  normal 


The membership for full functionality is not only affordable but  pays off with a single wrong propeller and safes your money.
The restricted Demoversion with reduced functionality and 20% random database is for free. Sign-up now and become an eCalc Member today with instant access to the full funcionality and over 10'500 predefined components.

We apprecite your scan's of any article about eCalc you read in your prefered RC Magazine - info[at]


evCalc − #rEVolution

very first multi-brand EV Range Simulation
evCalc for electric cars for all brands of electric cars
Buying a TESLA? use our referral code and get 1000mi/1500km free of SuperCharging: - thanks!

companies trust in eCalc

Direct Advertising

We support direct advertisement on eCalc to maximize your advertising return with a unique, strong and focused target audience.


These tools may further support you by calculating RC- and EV-related tasks:

about eCalc - drive calculator

Since 2004 eCalc provides web-based quality services to simulate, calculate, evaluate and design electric brushless motor drives for RC pilots of airplane, multi rotor, UAV, helicopter and EDF jets.
eCalc's motor database is the most comprehensive on the web.

Follow us on Twitter @eCalc_e, Facebook Group eCalc or the eCalc YouTube Channel to get the latest news.

Is my Motor available?
Wondering your motor is in the Database? ...check the full motor list. If you motor is missung just provide us with the specifications...

You are a motor manufacurer?
Please send us your specifications or fill in this form and we will update our database with your motors. Thereafter all visitors may use your motors for calculation. This will increase your visibility on the market considerable.

Did you find a bug or data error?
please report to info[at] with detailed discription and screen shot - Thank you.

Missing your Language?
We are looking for experienced RC Pilots willing to translate eCalc from english or german to any other language. Please contact us info[at]

terms & conditions

The private use is granted without restrictions. The copyright applies.

The commercial use without any contract with Solution for All Markus Mueller is expressly prohibited. For the contracted  commercial users the Terms & Conditions applies. 

Interested in a commercial use? Please contact us by email: info[at]

copyright & author's right

All source codes, data, texts, pictures and graphs and their arrangements are subject to copyright and are the intellectual property of Solution for All Markus Mueller. They may neither be copied for forwarding nor used in an amended form or on other websites or servers or any kind of electronic device.

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