A personal loan calculator can estimate monthly repayments and the total cost of borrowing, but it cannot guarantee the best rate you will be offered. Compare the representative APR, loan term, total amount repayable and any fees, as a lower monthly payment can cost more overall if you repay over longer. Use eligibility checkers where available, since these usually involve a soft search that should not affect your credit score, although you should check the provider’s terms. Before applying, compare FCA-authorised lenders and check the rate you are offered against your budget and credit report.