Chlorine Calculator – Calculate Pool Chlorine Dosage Chlorine Calculator Pool Chlorine Calculator Enter your pool details to calculate the amount of chlorine product needed. Pool Volume: Volume Units: US GallonsLiters Current Free Chlorine (FC): ppm Target Free Chlorine (FC): ppm Chlorine Product: Liquid Chlorine (12.5% Trade, ~1 lb/gal)Liquid Chlorine (10% Trade, ~0.9 lb/gal)Calcium Hypochlorite (65%)Calcium … Read more
Cinder Block Fill Calculator – Estimate Concrete/Grout Needed Cinder Block Fill Calculator Estimate the amount of fill material (concrete/grout) needed for your block wall. Calculate Fill Volume Block Size (Nominal WxHxL, inches): 4 x 8 x 166 x 8 x 168 x 8 x 1610 x 8 x 1612 x 8 x 16 Select the … Read more
CFU Calculator: Calculate Colony Forming Units/mL CFU Calculator CFU/mL Calculator Calculate the Colony Forming Units per milliliter (CFU/mL) of your original sample. Number of Colonies Counted: Enter the number of colonies counted on the plate (e.g., between 30 and 300). Dilution Factor: Enter the total dilution factor of the sample plated (e.g., 10, 100, 1000, … Read more
Cat Coat Genetics Calculator – Predict Kitten Colors Cat Coat Genetics Calculator Kitten Coat Predictor Select the known genotypes of the sire (father) and dam (mother) to predict the probability of different coat colors and patterns in their kittens. Start with Dominant White (W), Orange (O), Black/Brown (B), and Dilution (D). Sire (Father) Genotype W … Read more
CalSTRS Retirement Calculator – Estimate Your Pension CalSTRS Retirement Calculator Estimate your monthly pension benefit from the California State Teachers’ Retirement System (CalSTRS) using our simple CalSTRS Retirement Calculator. Enter your details to project your retirement income. Current Age (Years): Enter your current age in years. Planned Retirement Age (Years): Age you plan to retire … Read more
Time of Flight Calculator – Projectile Motion Time of Flight Calculator (Projectile Motion) Initial Velocity (v₀) (m/s): 20 m/s The speed at which the projectile is launched. Must be non-negative. Launch Angle (θ) (degrees): 45 ° The angle with respect to the horizontal at which the projectile is launched (0-90 degrees). Initial Height (h₀) (m): … Read more
Aggregate Score Calculator – Calculate Your Weighted Average Aggregate Score Calculator Calculate your weighted aggregate score or percentage from marks in various subjects or components. Add Component/Subject Calculate Aggregate Reset Copy Results Calculation Results Formula Used: Aggregate Score (%) = Σ [(Marks Obtained / Maximum Marks) × Weightage] for each component, assuming total weightage is … Read more
Calculator Key NYT Crossword Solver & Guide Calculator Key NYT Crossword Helper The “Calculator Key” Solver Some NYT crosswords feature “calculator key” or number-based themes where you need to perform operations on a given number to derive a letter or word. This tool helps you simulate common operations. Input Number (from clue): The number provided … Read more
Oxygen Delivery (DO2) Calculator & Guide – Calculation of Oxygen Delivery Oxygen Delivery (DO2) Calculator Calculate Oxygen Delivery (DO2) Enter the following values to perform the calculation of oxygen delivery. Cardiac Output (CO) (L/min): Typically 4-8 L/min. Hemoglobin (Hb) (g/dL): Typically 12-18 g/dL for males, 11-16 g/dL for females. Arterial Oxygen Saturation (SaO2) (%): Typically … Read more
Calculating Weekdays in Excel Calculator & Guide Calculating Weekdays in Excel Calculator Easily calculate the number of working days between two dates, excluding weekends and optional holidays, just like using `NETWORKDAYS` in Excel. Learn more about calculating weekdays in Excel below. Weekday Calculator Start Date: The beginning of the period. End Date: The end of … Read more