Top calculators

Ranked by real visitor activity — over the last 30 days.

100 calculators

# Calculator Category
1 Gallons to Kilograms (gal to kg) Converter Convert
2 Kg to Liters Converter Convert
3 Expiration Date Calculator Time & Date
4 Lunar Age Calculator Time & Date
5 Lbs to PSI Calculator Convert
6 Bag Capacity Everyday
7 Tree Age Calculator (DBH method) Nature
8 Cubic Meter to Ton Converter Convert
9 Unicode Text Converter Convert
10 Kg to Ounce Converter Convert
11 Pint to Pound Converter Convert
12 Mg to Tablespoon Converter Convert
13 AC Tonnage Calculator - HVAC Sizing by Square Feet Home
14 Mg to Teaspoon Converter Convert
15 mmol/L to mg/dL Converter Health
16 Calories Burned Weight Lifting Calculator Health
17 Unit Price Calculator Everyday
18 Punch Force Calculator Home
19 Trump Probability Calculator (Cards) Home
20 mL to Grams Converter Health
21 Mcg to IU Converter (Vitamins A, D, E) Health
22 Body Fat Calculator (US Navy Method) Health
23 Cents to Dollars Converter Convert
24 Kg to Gallons Converter Convert
25 ml to kg Converter Convert
26 Hours and Minutes Calculator Time & Date
27 Gallons to Grams Converter Convert
28 Engine Hours to Miles Converter Everyday
29 Garlic Converter Everyday
30 Stairs Calorie Calculator Health
31 Hematocrit / Hemoglobin Calculator Health
32 Basal Area Calculator (Forestry, DBH & Prism) Nature
33 Hydroelectric Power Calculator (Head, Flow, η) Nature
34 Screen Size Converter Convert
35 Taper Calculator (TPF, Angle, Ratio) Home
36 Walking Calorie Calculator Health
37 Days to Months Converter Convert
38 mL to Teaspoons Converter Convert
39 Steps to Calories Calculator Health
40 Grams to Teaspoons Converter Health
41 45 Day Calculator Time & Date
42 Inches to Fraction Calculator Convert
43 Quarts to Pounds Converter Convert
44 Download Time Calculator Everyday
45 Percentage Discount Calculator Money
46 Desk Height Calculator Everyday
47 Mcg to mL Converter Convert
48 Gram to Liter Conversion Convert
49 Graduation Year Calculator Time & Date
50 Date Countdown Calculator Time & Date
51 CC to Oz Converter Convert
52 Army Body Fat Calculator (AR 600-9) Health
53 Kg to mL Converter Convert
54 Sand Calculator Home
55 Calories Burned by Heart Rate Health
56 EU to US Shoe Size Converter Everyday
57 Letters to Numbers Converter Everyday
58 Foot to Centimeter Converter Convert
59 Bar to PSIG Converter Convert
60 Rate of Return Calculator Money
61 Gallons Per Minute (GPM) Calculator Home
62 Hectares to Acres Converter Convert
63 Appreciation Calculator Money
64 Weekly Pay Calculator Money
65 HP to Amps Calculator Science
66 Mil to MM Conversion Convert
67 Months Between Dates Calculator Time & Date
68 Pie Chart Calculator (Percentages and Degrees) Science
69 psi to Inches of Water Conversion Calculator Convert
70 Water Density Calculator Science
71 EER Calculator - Estimated Energy Requirement Health
72 Least to Greatest Calculator Science
73 Prorated Rent Calculator Money
74 Resolution Scale Calculator Everyday
75 Chemical Name Lookup (Formula ↔ Name) Science
76 Relative Error Calculator Science
77 Gallon to Tons Converter Convert
78 kPa to mmHg Conversion Calculator Convert
79 Taco Bar Calculator Everyday
80 Margin with Discount Calculator Money
81 Boiling Point Calculator (Altitude & Pressure) Science
82 DC Wire Size Calculator Science
83 MAGI Calculator (Modified Adjusted Gross Income) Money
84 FFMI Calculator Health
85 Cholesterol Units Converter Health
86 Rolling Offset Calculator Home
87 Date to Date Calculator Time & Date
88 Number to Billion Converter Convert
89 Tree Value Calculator (Timber Value Estimator) Nature
90 Acceptance Rate Calculator Everyday
91 Appliance Energy Cost Calculator Nature
92 Birth From Death Date Calculator Everyday
93 Bulb Spacing Calculator (Tulips, Daffodils, Crocus) Nature
94 Child Cost Calculator Everyday
95 Clearance Hole Calculator Home
96 Compost C:N Ratio Calculator Nature
97 Cuboid Weight Calculator Home
98 Day Converter - Days to Hours, Weeks, Years Convert
99 Decimal to Hexadecimal Converter Convert
100 Door Header Size Calculator Home