This document is only available with a paid isurv subscription.

Length and area conversion formulae 1 foot = 0.3048 metre 1 inch = 2.54 centimetre 1 mile = 1.609344 kilometre 1 yard = 0.9144 metre 1 acre = 0.404685 hectare 1 sq. foot = 0.09290304 sq. metre 1 acre = 43,560 sq. ft Valuation formulae Where i = the interest rate; and n = period: YP perpetuity = 1 / i Present Value...

Explore the subscription options here to get full access to isurv, including downloads.

Try isurv for free!

You can get instant access to a free, 7-day trial of isurv simply by filling in the free trial form. Please note that the free trial includes full access to isurv with the exception of downloadable content which is only available with a paid subscription.

Sign up for the isurv newsletter, to receive a monthly round-up of the latest isurv updates.

For further questions, don't hesitate to call: +44(0)247 686 8555.