Kahur Tools — Free Online Calculators

11 calculators

Calculate the gross pay reduction for unpaid absence hours.

See how your savings or investment grow over time with compounding interest.

Calculate profit margin vs markup — understand the difference and optimise your pricing.

Find the exact sales volume needed to cover all your costs and break even.

Generate or validate an SEPA structured creditor reference (RF…).

Generate a full amortization schedule showing monthly payments, interest, and principal.

Convert between annual salary, monthly pay, and hourly rate in both directions.

Calculate exact Stripe processing fees and net payout for any transaction amount.

Find out how much PayPal takes from each payment and what you actually receive.

Estimate YouTube ad revenue, CPM, RPM, and total earnings from your view count.

Calculate affiliate earnings based on sale value, commission rate, and volume.