reliable electric drive simulations
Limited time offer - Hurry up!
Still guessing...? get the right drive - no
more mispurchase and safes your money
«The cost for eCalc is even lower then a mispurchase of a
propeller only, let alone from a wrong motor, esc or battery...»
more than 197'406'145 setups
calculated and simulated so far.
eCalc - reliable RC
Calculators since 2004
Buy a membership now,
get instant access
to the unrestricted version and enjoy the
advantage of a membership:
Extend or renew existing Membership:
- fast, reliable, affordable and
- no more guess work and mispurchase -
advanced simulation will avoid any mismatch of your next RC
- eCalc is the one and only calculator considering
dynamic effect on a propeller with airfoil shapped
- access to the full and most
comprehensive component database with currently
- enjoy the
additional functiunality: simulate
virtually any drive by entering the specs manually,
Wizard for motor/prop selection,
search for motors, export your
results to any spreadsheet application,
save and recall or share setups as bookmarks.
- use the expert view for desktop computers
or the easy view on your smartphone.
visit and sign-up our growing
eCalc YouTube Channel for explanatory videos
Loyality bonus: get an
additional discount for renewal of your membership
- no installation
required and have always the current version at hand
- eCalc runs on all computer, tablets and smartphones
having a state-of-the-art web browser installed, independent of
the operating system (iOS, Win, Android, Unix,...)
- free of advertisement
Get a special discount
An existing membership can be extended any time by any membership
periode of the same membership type as long as the same
email address is used
Terms and Conditions:
eCalc is subject to copyright and intellectual property rights.
Your membership is for personal use only. All
values are calculated and may deviate from the real. Before flight
you have to recheck the actual max. values. They must stay within
the manufactuerers limitations.The functionality of eCalc may change
without any notice. System outage or unforseen service
discountinuation are not refundable. Use of the calculators is on
your own risk - We reject any liablity.
Any misuse or extensive use will result in expiration of your
membership without refund.
(For usage with commercial intent or
commercial use please contact info[at]ecalc for a quote.)
Secured Payment & Purchase Protection:
Choose your membership. Prices are in US$
secured payment by PayPal.com or Stripe.com. Choose your membership
plan below for immediate access and pay by:
with PayPal: use your PayPal account or your Credit
Card. The Payment service of
PayPal will issue a receipt and benefit from PayPals
extensive purchase protection.
change language on PayPal payment form... Check
the PayPal page for language selection.
[Pay with Card]
with Stripe: use your Credit Card for safe,
fast and easy payment. The Payment service of Stripe will issue a
Manual invoices are issued for commercial
licenses only! (Remark for eCheck and debit card:
access will be granted after transfer of money. This may take 3-10
Note: Your payment is fully handeled by PayPal or Stripe - we do not store
any card details.
Payment by PayPal account
: after clicking on «Buy
Now» you will be redirected to PayPal. Choose «Pay with my PayPal
account» and login to your PayPal accound. Follow the payment
process... At the end follow the link «Return to info[at]ecalc.ch»
and your eCalc login details for immediate access will be dispayed.
Payment by Credit Card with PayPal
: after clicking on «Buy Now»
you will be redirected to PayPal. Choose «Create an Account» and pay
easy and secure with your Credit Card. Follow the payment process...
At the end follow the link «Return to info[at]ecalc.ch» and your
eCalc login details for immediate access will be dispayed.
Note: Your payment is fully handeled by PayPal - we do not store
any card details. To decrease credit card fees PayPal did change
there policy by Janary 1st 2017. A credit card payment is still
possible but only by creating an account.
Some people hesitate do
create a PayPal account - why? PayPal offers an
extensive and sophisicated security for byers including purchase
protection. Think about this: I personaly
prefere to have my credit card details at a single place (PayPal)
and pay online by PayPal instead of spreading my credit cartd
details all over the different web shops.
Payment by Credit Card with Stripe: after clicking on «Pay
with Card» a dialog will open requesting your card details. Follow
the payment process for immediate access.
eCalc is a Web Application and runs on computers, tablets and
smartphones with a state-of-the-art web browser (Microsoft Edge, FireFox, Chrome, Safari and Opera) indepentent of the operating
system (Win, iOS, Anreoid, Unix,...).
We refund your membership only in exeptional cases when requested
within 3 days of your sign-up. Please email to info[at]ecalc.ch with
your username. If refund applies we refund your membership fee less
payment fee of PayPal or card fee of Stripe.