diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index f3615d4180f..ddf8288210a 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -4770,7 +4770,7 @@ class Form
 			print '<form method="POST" action="'.$page.'">';
 			print '<input type="hidden" name="action" value="setmulticurrencyrate">';
 			print '<input type="hidden" name="token" value="'.newToken().'">';
-			print '<input type="text" name="'.$htmlname.'" value="'.(!empty($rate) ? price($rate) : 1).'" size="10" /> ';
+			print '<input type="text" class="maxwidth100" name="'.$htmlname.'" value="'.(!empty($rate) ? price(price2num($rate, 'CR')) : 1).'" /> ';
 			print '<select name="calculation_mode">';
 			print '<option value="1">'.$currency.' > '.$conf->currency.'</option>';
 			print '<option value="2">'.$conf->currency.' > '.$currency.'</option>';
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 59b922977d2..e623e92e1c7 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -4660,6 +4660,7 @@ function price($amount, $form = 0, $outlangs = '', $trunc = 1, $rounding = -1, $
  * 									'MU'=Round to Max unit price (MAIN_MAX_DECIMALS_UNIT)
  *									'MT'=Round to Max for totals with Tax (MAIN_MAX_DECIMALS_TOT)
  *									'MS'=Round to Max for stock quantity (MAIN_MAX_DECIMALS_STOCK)
+ *                                  'CR'=Currency rate
  *									Numeric = Nb of digits for rounding
  * 	@param	int		$alreadysqlnb	Put 1 if you know that content is already universal format number
  *	@return	string					Amount with universal numeric format (Example: '99.99999').
@@ -4713,6 +4714,7 @@ function price2num($amount, $rounding = '', $alreadysqlnb = 0)
 		if ($rounding == 'MU')     $nbofdectoround = $conf->global->MAIN_MAX_DECIMALS_UNIT;
 		elseif ($rounding == 'MT') $nbofdectoround = $conf->global->MAIN_MAX_DECIMALS_TOT;
 		elseif ($rounding == 'MS') $nbofdectoround = empty($conf->global->MAIN_MAX_DECIMALS_STOCK) ? 5 : $conf->global->MAIN_MAX_DECIMALS_STOCK;
+		elseif ($rounding == 'CR') $nbofdectoround = 8;
 		elseif (is_numeric($rounding))  $nbofdectoround = $rounding;
 		//print "RR".$amount.' - '.$nbofdectoround.'<br>';
 		if (dol_strlen($nbofdectoround)) $amount = round($amount, $nbofdectoround); // $nbofdectoround can be 0.