We are working on building a calculator for every computation life throws at you - from the serious to the whimsical.
Design a garden that thrives amid shifting weather patterns. Estimate your climate resilience score based on zone, rainfall, and temperature.
Estimate the carbon emissions from your daily commute. Enter travel distance, vehicle emission rate, work days, and weeks per year.
Calculate radiative forcing and approximate temperature change from variations in atmospheric CO₂ concentration using a logarithmic formula.
Calculate potential profits from recycling electronic waste. Enter collection weight, revenue per kilogram, processing cost, and overhead to see net earnings.
Estimate how an electric vehicle battery's capacity declines with age, mileage, charge cycles, and climate. Plan future range by understanding degradation.
Calculate how much fertilizer you need based on area size, desired nutrient rate, and fertilizer grade.
Calculate the ideal watering time for your garden using soil type, climate, area, and sprinkler flow rate. Keep plants healthy and conserve water.
Find the best dates to start seeds and transplant your favorite vegetables based on your local frost date.
Calculate the payback period for a home graywater recycling system based on installation cost, water savings, and usage.
Estimate how much of your household waste you divert from the landfill through recycling and composting.
Estimate how many tons or gallons of manure are needed to meet crop nutrient goals based on manure analysis, field size, and nutrient availability.
Plan your garden with the moon. Enter a starting date and crop type to see the best planting dates according to the lunar cycle.
Compute a planet's equilibrium temperature from its stellar flux and albedo to understand climate conditions.
Estimate the subsolar magnetopause distance where solar wind pressure balances a planet's magnetic field.
Discover how much you would weigh on planets like Mars, Jupiter, or Neptune. Enter your Earth weight to see the gravitational effect across the solar system.
Determine your USDA plant hardiness zone by entering your average annual extreme minimum temperature. Plan gardens with confidence.
Determine how often to water your plants by entering plant type, pot size, and environment. Learn tips to prevent overwatering and underwatering.
Quickly estimate the ideal liner size for a backyard pond. Enter pond length, width, and depth to find liner dimensions with overlap.
Calculate the pressure exerted by electromagnetic radiation on a surface, including options for absorption or reflection.
Find the ideal rain garden size for your property using rainfall depth, impervious area, and soil absorption.
Determine how much soil you need for new raised beds. Enter length, width, and depth to calculate volume, plus tips on soil mixes and layering.
Determine how much lime or sulfur your soil needs to reach a target pH. Enter current pH, desired pH, area, and soil texture for a quick estimate.
Estimate the chance of an M-class solar flare using sunspot number and solar flux.
Estimate how often to clean your solar panels based on dust levels, rainfall, and tilt angle. Keep your photovoltaic system running efficiently.
Estimate how a photovoltaic system's capacity declines over the years. Enter initial wattage, annual degradation rate, and years to project remaining output.
Calculate the sun's current azimuth and elevation for any location and time. Useful for solar panel setup, photography, and astronomy.
Calculate radiant heat emission using the Stefan-Boltzmann law. Determine power based on temperature, surface area, and emissivity.
Estimate how many herbs or vegetables you can grow on a small balcony. Input container count, sunlight hours, and plant spacing to predict yield.
Calculate how much produce you can grow in a vertical garden. Input tiers, plants per tier, yield per plant, and harvests per year.
Determine the wavelength of maximum emission for a blackbody at any temperature using Wien's displacement law.