eCalc - electric drive simulation and calculation - the most reliable RC Calculator on the Web

 news - February 24nd

2/24/20 - Motor Database: AXI updated

2/23/19 chargeCalc 2.01: updated with "efficient charge range" indication.

2/22/20 - EV Database Update: Audi etron S & S Sprotsback, Xpeng P7

2/11/20 - ESC Database: new APD ESC added

2/4/20 - Motor Database: Xnova updated

1/22/20 - EV Database Update: NIO EC6 with 70kWh and 100kWh

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

1/12/20 - Motor Database Update: minor corrections

12/14/19 - evCalc Version 5.00 available - What's new?

  • Detailed graph with consumption and SoC simulation along your route taking the speed shedule into account.
  • Simulate a trailer with your car
  • improved routing marker

12/14/19 - eCalc Version 7.17 available - What's new?

  • Service update
If you have problems to run the new version, please proceed according the General Procedure here...

12/12/19 - Motor Database Update: Leomotion 23xx, Kontronik Spider-S

13/03/19 - EV Car Database updated: Tesla Cyybertruck

11/25/19 - Motor Database Update: new BadAss motors added

11/12/19 - EV Car Database updated: Aiways U5 and Polestar 2

** 100 Mio eDrive Calculations - eCalc rocks ** - 11/06/19

10/30/19 - Motor Database Update: T-Motor 15L, XL, XXL, V Serie

10/20/19 - RC Database Update: Leomotion LEO GC-Types, Dualsky Capsuled EG-Types, new OEM Robbe, Mejzlik Multicopter Props

10/19/19 - EV Car Database updated: Mercedes EQC AMG Line, Porsche Taycan 4S & 4S+

9/24/19 - Motor Database Update: NeuMotors 38xx & 65xx

9/23/19 chargeCalc 2.00: Taking battery degradation (SoH) into account

9/20/19 - evCalc 4.56 & chargeCalc 1.11: integration both web application setting the selected car, see new features...

8/7/19 - check out our interview by NowYouKnow

8/6/19 - now with 10'000+ Motors in the most compehensive  motor database on the web

8/6/19 - evCalc: 5 Million Trip Calculations - thanks to all!

1/22/18 - eCalc is selected to be DRONE MARKET PROFESSIONAL 2018 for it's leading role on the Drone Market.

Still guessing...?
✓ affordable and less than a single wrong prop!
✓ Reliable Predictions since 2004
✓ calculating more than 20'000 setups a day
✓ over 105mio drives calculates so far

Sign-up now and get instant access!

Choose your Calculator

propCalc for fixed wing aircraftfor Airplane
propCalc for fixed wing aircraftfor Airplane
fanCalc for electric jet calculationfor EDF Jets
heliCalc for helicoopter calculationCenter of Gravity
xcopterCalc for multicopter and drone calculationfor Multirotor
heliCalc for helicoopter calculationfor Helicopter
torqueCalc for industrial designfor industry
evCalc for electric carsfor electric cars
evCalc for electric carscharging EVs

available in 18 languages: 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!


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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