What are the transaction fees with Ripple.com? https://ripple.com/how-ripple-works/


  While Ripple does not charge a typical fee for profit, each
  transaction does require a small portion of a ripple (equivalent to
  ~1/1000th of a cent) for security.


This seems to assume a certain conversion rate between Ripples (XRP) and real world money. How much in XRP is the TX fee?
The default fee for a transaction is 0.00001 XRP.

But the fee is not fixed. Quoting the wiki:


  Transaction fees are adjusted based on two factors: base fee and load
  fee
  
  base fee: long term fee adjustments
  Since transaction fees are
  paid in XRP and the price of XRP may change overtime, to keep the
  price of transactions affordable, Ripple uses an adjustable "base fee"
  to specify the cost of transactions.
  
  load fee: short term fee adjustments
  The "load fee" can rise quickly to protect the network
  from attacks and keep the network functional under heavy load.


The fee schedule is changed using consensus, quoting. D.Schwartz:


  A node can introduce a transaction to change the base fee. If a
  trust-weighted majority of nodes vote "yes" on the transaction, it
  will be incorporated into the ledger and the fee will be changed.