Other Calculators Calculators

Utility and miscellaneous calculators for dates, time, measurements, construction, and everyday calculations.

Other Calculators

Exact age in years, months, and days between two dates.

Add or subtract days, weeks, or months from a date.

Cubic yards for a rectangular slab or footing.

Rough cooling BTU from room size, insulation, and sun.

Area for rectangles, circles, and triangles with total square footage.

Step count, rise, run, stringer length, and stair angle estimates.

Estimate the total number of tiles needed to cover a floor, roof, wall, or surface.

Estimate mulch needed to cover an area and calculate total mulch cost.

Estimate gravel needed based on density and depth, and calculate cost.

Calculate total hours worked, including overtime, breaks, and pay periods for time tracking.

Add or subtract time values with hours, minutes, and seconds for time arithmetic calculations.

Calculate daily and weekly hours from time card entries, including breaks and overtime for payroll.

Predict adult height based on parents' heights and convert between metric and imperial units.

Convert between commonly used units for length, weight, temperature, and volume.

Calculate gross domestic product using expenditure or income approaches.

Estimate electricity usage and cost based on power requirements and appliance usage over time.

Calculate voltage, current, resistance, and power using Ohm's Law (V=IR, P=VI).

IPv4 and IPv6 subnet information: network address, usable hosts, subnet mask, and IP class.

Convert data units, calculate download/upload time, and estimate website bandwidth requirements.

Encode text to Base64 or decode Base64 back to text. Perform conversions directly in your browser.

Encode text to URL-safe format or decode URL-encoded text. Handle special characters safely.