Calculadora de Horas
Use the free online Calculadora de Horas tool. Fast, private and easy to use — runs entirely in your browser. Part of our Calculadoras collection.
Calculadora de Porcentaje
Work out a percentage of a number, or what percentage one number is of another.
Calculadora de Promedio
Calculate the mean, median, sum, count, minimum and maximum of a list of numbers.
Calculadora de Margen de Beneficio
Find profit, margin and markup from cost and revenue — or the revenue needed for a target margin.
Calculadora de Descuento
See the final price after a discount and how much you save.
Calculadora de IVA
Add or remove GST/VAT at any rate to get net, tax and gross amounts.
Calculadora de Comisiones PayPal
Estimate PayPal fees and the amount to request so you receive what you need.
Calculadora de Comisiones Stripe
Estimate Stripe processing fees and the charge needed to net a target amount.
Calculadora de CPM
Calculate CPM, total cost or impressions for an ad campaign — fill any two.
Calculadora de Probabilidad
Compute the probability of A and B, A or B, not A, and neither for independent events.
Calculadora de Intervalo de Confianza
Find the confidence interval for a mean at 90%, 95% or 99% confidence.
Calculadora de Días
Count the number of days, weeks and months between two dates.
Calculadora de Horas
Work out the hours and minutes between two times, including overnight shifts.
Calculadora de Meses
Count the whole months — and years plus months — between two dates.
Calculadora de TDEE
Estimate your Total Daily Energy Expenditure (TDEE) and calorie targets for weight goals.